Alpinestars Stella Tech-Air 3 User manual

v. 1.1
USER GUIDE
IMPORTANT - READ THIS MANUAL
CRITICAL SAFETY INFORMATION INSIDE

Please read the following important WARNING and
LIMITATION of use notice carefully:
Motorcycling is an inherently dangerous activity and an ultra-hazardous
sport, which may result in serious personal injury, including death.
Each individual motorcycle rider must be familiar with motorcycling,
recognize the wide range of foreseeable hazards and decide whether
to assume the risks inherent in such an activity with the knowledge of
the dangers involved and accept any and all risks of injury, including
death. While all motorcycle riders should utilize appropriate protective
equipment, each rider should exercise extreme care for safety while
riding and understand that no product can offer complete protection
from injury including death or damage to individuals and property in
case of fall, collision, impact, loss of control or otherwise. Riders should
ensure that safety products are correctly fitted and used. DO NOT use
any product that is worn out, modified or damaged.
Alpinestars makes no guarantees or representations, express or
implied, regarding the fitness of its products for any particular
purpose.
Alpinestars makes no guarantees or representations, express
or implied, regarding the extent to which its products protect
individuals or property from injury, death or damage.
ALPINESTARS DISCLAIMS ANY RESPONSIBILITY FOR INJURIES
INCURRED WHILE WEARING ANY OF ITS PRODUCTS.

7EN6EN
0. Preliminary Notes 7
1. Introduction 7
2. Principles of Operation 9
3. Tech-Air® Envelope of Protection 10
4. Limitations of Use 16
5. System Overview 18
6. Sizing 19
7. Health and Age Restrictions 24
8. Compatible Garment 25
9. System Installation and Fitting 27
10. Transportation of Objects and Use of the Pockets 28
11. Battery Charging 29
12. System Operation 30
13. LED Display Indications 34
14. Cleaning, Storage and Transportation 36
15. Maintenance, Servicing, Lifespan and Disposal 41
16. Actions in the Event of an Accident 43
17. Tech-Air® App 45
18. Troubleshooting 50
19. Tech-Air® Support 53
20. Certification Information 53
21. Important Information for Users WARNING! 63
Table of Contents 0. Preliminary Notes
In this manual the following four presentation styles are used to provide information:
Provides critical information which, if not followed, may cause injury,
death, System malfunction or non-function, and/or an exaggerated
expectation of the Tech-Air® 3 System’s abilities.
WARNING!
Provides useful advice regarding the Tech-Air® 3 System.
IMPORTANT! Provides important information regarding the limitations of the System.
Tip:
Provides information related to Tech-Air® App optional functionalities.
1. Introduction
Dear User, thank you for choosing an Alpinestars Product!
The Tech-Air® 3 System (hereinafter referred to as “System” and/or “Tech-Air® 3 System”) is
an active safety system for sport and recreational motorcycling, which offers protection to a
motorcycle user both as a rider or passenger. In the event of an accident or other triggering
event, the System provides protection to the upper body as it covers the user’s chest and
full back. The System is designed to function in both road riding and light off-road riding
situations (subject to the Off-Road limitations indicated in Section 3 below).
The Tech-Air® 3 System consists of a standalone Airbag System, contained within a
vest, which is designed to provide additional protection from impacts occurring during
a motorcycle accident, to motorcycle users both as riders or passenger. The System is
specifically designed to be worn over standard motorcycling gear, as it is able to guarantee
protection, within the coverage area, against impact and possible abrasion during an
accident.

9EN8EN
The Tech-Air® 3 System does not offer the Dual Charge Concept.
Once the airbag has deployed there is no additional airbag charge.
This means that the User of the System is without further airbag
protection until the System is serviced, and the airbag inflator is
replaced.
The System, including its components, are technologically advanced
pieces of motorcycling safety equipment and should not be treated
like a normal motorcycle garment. Similar to one’s motorcycle,
the System and its components must be cared for, serviced and
maintained, so that they may function correctly.
Although the Tech-Air® 3 System is abrasion resistant certified, it
is highly recommended to use it in combination with an additional
protective garment, compatible with the System (see Section 8
“Compatible Garment”).
WARNING!
WARNING!
WARNING!
It is essential to read this user manual carefully, to understand it
completely and to follow the advice and warnings illustrated in this
user manual. If you have any questions regarding the equipment,
contact Tech-Air® Support (see Section 19 “Tech-Air® Support”).
WARNING!
IMPORTANT! Without any additional notice, Alpinestars reserves all rights to, from time
to time, update the software and/or the electronic components of the Tech-
Air® 3 System.
2. Principles of Operation
The System consists of a vest with an integrated Airbag Electronic Control Unit (with built-in
sensors) and a LED Display (Figure 1). The Airbag Electronic Control Unit contains 1 triaxial
accelerometer and 1 triaxial gyroscope (also referred to as a sensor cluster). These sensors
monitor the user’s body for shocks or unexpected movements. In the event the user’s body
is subject to a high and/or sudden amount of energy, the System will deploy. This may occur
when the motorcycle is involved in an accident, such as when the motorcycle collides with
another vehicle or with an obstacle, when the rider loses control or when the rider falls off
the motorcycle.
The System is equipped with a Bluetooth Low Energy (BLE) device located in the Electronic
Control Unit (ECU). The BLE allows the System to connect directly to a mobile phone in
order to receive important information from the System, while also permitting the users to
access a number of other functions (for further information see “Tech-Air® App” in Section
17 “Tech-Air® App”). The System does NOT need to be connected to the Tech-Air® App to
work, it functions independently of the Tech-Air® App.
Figure 1 – Sensor Location
To connect the System to the mobile phone via Bluetooth, remember to
activate the Bluetooth module within your phone and to download the Tech-
Air® App available at the Google Play Store or at the Apple Store.
CHASSISNUMBER:
0000000
L
Sensor
ECU
Figure 1
(Front)
Sensor
(Back)

11 EN10 EN
The Tech-Air® 3 System comes with the “Street Mode” that permits the use of the System
on streets, as well as on light off-road paths. Users can easily check to have the Street Mode
correctly installed in their Systems by verifying with the Tech-Air® App.
User must always ensure via the App that the System is running the most up
to date software release.
Figure 2: Area of Airbag coverage
No product can provide complete protection from injury (or death),
or damage to persons or property in the event of a fall, accident,
collision, impact, loss of control or other event.
WARNING!
The System provides impact protection, on the areas shown in Figure 2, to the user (both as
rider and as a passenger) wearing the System in the event of an accident or other triggering
events. Note that there are limitations to the protection it can provide as explained later in
this user manual (see Section 3.2 and Section 4 “Limitations of Use”).
CHASSISNUMBER:
0000000
L
AREA OF AIRBAG COVERAGE
FRONT BACK
CHASSISNUMBER:
0000000
L
AREA OF AIRBAG COVERAGE
FRONT BACK
(Front) (Back)
3. Tech-Air® Envelope of Protection
The “Envelope of Protection” is a term used to generally describe situations and/or
circumstances where the System may provide protection, denoted as “inside the Envelope”,
and those where it will not, denoted as “outside the Envelope”.
Area of airbag
coverage
For the Tech-Air® 3 System the Envelope of Protection includes crashes against obstacles
and loss of control crashes (commonly referred to as ‘low-side’ and ‘high-side’ crashes).
In the Street Mode, the Envelope of Protection also include situations in which the rider’s
motorcycle whilst stationary, is hit by another vehicle.
Table 1 summarizes the Envelope of Protection for the Street Mode.
The System provides only limited impact protection against forces in
the areas of Airbag coverage as depicted in Figure 2. No guarantee is
given that the System will prevent injuries (including severe or fatal
injuries) inside and/or outside the areas of Airbag coverage or the
Envelope of Protection.
The System cannot prevent accidents to the user.
No protective device, including the System, can provide protection
against all possible sources of injury and therefore cannot provide
complete protection against injuries.
Wearing the System is not a substitute for wearing other protective
motorcycling clothing and gear. To provide full potential protection,
the System must always be worn in conjunction with suitable
motorcycling gear and apparel that covers the rider from head to toe,
including a helmet, protectors, boots, gloves, and other appropriate
protective equipment.
WARNING!
WARNING!
WARNING!
WARNING!
IMPORTANT! Unless explicitly stated, in this manual the ‘contact’ and/or the ‘impact’ of
the user with other objects must always be referred to as the covered areas
of the body.

13 EN12 EN
Table 1: Summary of the Envelope of Protection for Street Mode.
CrashesLoss Of Control
Incident Type Street Mode
Crashes
against
Obstacles
✔
Stationary
Crashes ✔
Low-Side
Crashes ✔
High-Side
Crashes ✔
3.1 Envelope of Protection for STREET MODE
3.1.1 Envelope of Protection for Crashes against Obstacles
In Street Mode, the Tech-Air® 3 System is active only when the System Check is passed
(see Section 12 “System Operation”) and after having started riding for approximately 10
seconds. Once activated, the System remains active even if the rider stops, and until the
System is manually switched off, to offer protection also in a stationary condition, when
the motorcycle is hit by a vehicle as described in the Envelope of Protection conditions (see
Section 3.1.2).
As summarized in Table 1, in Street Mode the Envelope of Protection includes:
- Crashes against Obstacles
- Stationary Crashes
- Low-Side Crashes
- High-Side Crashes
Tech-Air® 3 System is expected to inflate and protect before the user’s covered body areas
contact an obstacle, in Crashes Where a Motorcycle Strikes a Vehicle or Obstacle (Figure 3)
according to the following conditions:
Table 2: crash conditions
Relative Arrival Speed From 25km/h (15mph)
to 50km/h (31mph)
Impact Angle (Fig 3) From 45° to 135°
The above parameters are valid for both the rider and passenger.
50km/h
45°
45°
Figure 3

15 EN14 EN
Vehicle Arrival Speed From 25km/h (15mph)
Impact Angle From 45° to 135°, rear/front
3.1.2 Envelope of Protection for Stationary Crashes
In Street Mode, the Tech-Air® 3 System is tested to activate in Crashes Where a Vehicle
Strikes a Stationary Motorcycle (Figure 4) according to the following conditions:
The above parameters are valid for both the rider and passenger.
Outside the conditions of Table 2, the System may not deploy before
the first impact, but may deploy if the rider suddenly falls from the
motorcycle after the impact, regardless of the impact angle.
WARNING!
IMPORTANT! Figure 3 outlines the Envelope of Protection where the Tech-Air® 3 System
is expected to inflate before the user’s body covered areas contact an
obstacle. At speeds above 50km/h (31 mph) or outside the declared angle,
the System is expected to deploy as well, however, outside the Envelope
of Protection the System may not be fully inflated before there is contact
between the obstacle and the user’s covered areas.
Figure 4
50km/h
45°
45°
Table 3: crash conditions
During Loss of Control Crashes, and in particular, in Low-Side Crashes,
the System may not deploy before the first impact with the ground,
but may deploy during the following sliding phase, if present.
If the crash conditions are outside the Envelopes of Protection
described above, the System may not deploy if the acceleration and
angular speed measured by the System are not sufficient to activate
the Tech-Air® 3 System.
The user does not need to be involved in a crash for the System to
deploy. For example, the System will deploy if the user falls while
wearing the System, such as when dismounting from the motorcycle.
These types of “non-riding” deployments are not failures of the
System.
WARNING!
WARNING!
WARNING!
IMPORTANT! If the (relative) speed between the Motorcycle and the vehicle or obstacle
during the impact is less than 25km/h (15 mph), the System may not deploy
at the time of the collision/crash, but may deploy if the rider or passenger
suddenly falls from the motorcycle after the impact.
3.1.3 Envelope of Protection for Loss of Control Crashes
3.2 Envelopes of Protection: Limitation of use
A Loss of Control Crash (Low-Side and High-Side Crashes) often results in the motorcycle
falling over during riding, without necessarily being involved in a crash with other vehicles
or obstacles. This commonly happens when tire grip on the roadway is lost during a turn
or heavy braking.
There are some limitations to the deployment of Tech-Air® 3 System even inside the
Envelopes of Protection, when, in general, the environmental conditions prevent the
System from measuring acceleration and/or angular speed sufficient to activate the System.

17 EN16 EN
Motorcycle Type
The Tech-Air® 3 System can be utilized by riders or passengers on any type of motorcycle,
including electric motorcycles.
IMPORTANT! The chances of falling off a motorcycle are notably higher when riding off-
road, particularly when a rider is inexperienced. Even when stopped, a fall
may cause the System to deploy, leaving the user without protection until
the System is returned and recharged (see Section 16 “Actions in the Event
of an Accident”).
Light Off-Road Riding
The Tech-Air® 3 System be used off-road IN A LIMITED CAPACITY riding on gravel roads only.
For the purpose of using the System off-road, the definition of a gravel road is:
• An unpaved road surfaced with gravel.
• Has a minimum width of 4m (13ft).
• Has no gradients +/-30%.
• Has no ruts, steps, or holes greater than 50cm (19.5”) in depth.
The Tech-Air® App permits the user to temporarily disable the System
protection if, for instance, the user is undertaking heavy off-road riding.
The System cannot be turned on again with the App, but only by means of
opening and closing again the Activation Zip (1).
Since the System is sensitive to sudden body movements and shocks,
the System is to be used ONLY for motorcycling within the conditions
and limitations delineated above. The System is NOT for use in:
a. Any racing or competitive events;
b. Enduro, Motocross, or Supermoto events;
c. Motorcycle stunts; or
d. Side skidding, wheelies, etc.;
e. ANY non-motorcycling activities.
WARNING!
4. Limitations of Use
Due to shocks, movement and/or other input detected and/or
received by the System while in use, although unlikely, the System
may deploy even though there is no crash event.
WARNING!
Depending on the motorcycle type for example a scooter or trials
bike, it cannot be guaranteed that the System will inflate before the
user collides with parts of the motorcycle, or other objects.
Wearing the System is not a substitute for wearing other protective
motorcycling clothing and gear. To offer full potential protection
the System must always be worn in conjunction with suitable
motorcycling gear and apparel that covers the rider from head to
toe, including a helmet, protectors, boots, gloves, jacket, and other
appropriate protective equipment.
WARNING!
WARNING!
The System’s working temperature is between -20° and +50° (-4°F
to 122°F).
Do not use the System 4,000 meters above sea level as low pressure
may not guarantee a correct level of protection for the System.
WARNING!
WARNING!

19 EN18 EN
5. System Overview
The diagrams below illustrate the different parts of the Tech-Air® 3 System. The numbered
parts are used to guide you through this user manual.
TECH-AIR® 3 SYSTEM
1. Activation Zip
2. LED Display
3. Electronic Control Unit
4. Inflator Housing
5. Elastic band
Figure 5
CHASSISNUMBER:
0000000
L
1
2
3
4
5
BACKFRONT
Figure 5
(Front) (Back)
1
2
5
4
3
6. Type C USB Recharge Port
7. Type C USB Adapter
8. Magnetic Charging Cable
Figure 6
AIRBAG ELECTRONIC CONTROL UNIT
HOW TO ACCESS THE RECHARGE PORT
Figure 6
6. Sizing
The System is available in sizes ranging from XS to 4XL. In addition, a
women’s STELLA version specifically designed for use by female riders is
available in sizes ranging from XS to XXL.
Each size is characterized by a specific waist-to-shoulder length of the
user (Figure 7). Waist to Shoulder length (WSL) is an important parameter
for the choice of the right size of back protector: the user should always
be sure to use a protector with a WSL that match his/her measurement. Figure 7

21 EN20 EN
Refer to Section 20 (Certification Information) for the details on the WSL for each Tech-
Air® 3 size.
It is imperative that the System is fitted correctly, in order to provide the maximum potential
protection in the event of an accident. To help with the choice of the right size, the user
may refer to Table 4a and Table 4b below, that provides the reference measurements of
the body for each system’s size. When used as an outer garment, once worn, be sure that
the lateral elastic panels are not stretched and fit correctly, otherwise they may not work
properly during the Airbag inflation.
SIZE XXS XS S M L XL XXL 3XL 4XL
A. CHEST
(CM) 78 83.5 83.5 89 89 94.5 94.5 100 100 105.5 105.5 111 111 116.5 116.5 122 122 127.5
B. WAIST
(CM) 63 69 69 75 75 81 81 87 87 92 92 97 97 102 102 107 107 112
F. OUTER
ARM
(CM)
49 51 51.5 53.5 54.5 56.5 57.5 59 60 62 63 65 66 68 66 68 68 70
G.
HEIGHT
(CM)
157 162 163 168 169 174 175 179 180 184 185 189 190 194 190 194 195 199
A. CHEST
(IN) 30 3/4 32 7/8 32 7/8 35 35 37 1/4 37 1/4 39 3/8 39 3/8 41 1/2 41 1/2 43 3/4 43 3/4 45 7/8 45 7/8 48 48 50 1/4
B. WAIST
(IN) 24 3/4 27 1/8 27 1/8 29 1/2 29 1/2 31 7/8 31 7/8 34 1/4 34 1/4 36 1/4 36 1/4 38 1/4 38 1/4 40 1/8 40 1/8 42 1/8 42 1/8 44 1/8
F. OUTER
ARM
(IN)
19 1/4 20 1/8 20 1/4 21 21 1/2 22 1/4 22 5/8 23 1/4 23 5/8 24 3/8 24 3/4 25 5/8 26 26 3/4 26 26 3/4 26 3/4 27 1/2
G.
HEIGHT
(IN)
61 3/4 63 3/4 64 1/8 66 1/8 66 1/2 68 1/2 68 7/8 70 1/2 70 7/8 72 1/2 72 7/8 74 3/8 74 3/4 76 3/8 74 3/4 76 3/8 76 3/4 78 3/8
MEN’S SIZE GUIDES TECHAIR® 3
Table 4a
HOW TO MEASURE MEN’S
A. Chest
Measure around the fullest part, under the
armpits, keeping the tape horizontal.
B. Waist
Measure around the natural waist line, inline
with the navel, keeping the tape
horizontal.
C. Hip
Measure around the fullest part of your hips,
about 20cm below waist line, keeping the tape
horizontal.
D. Thigh
Measure around the thigh just below the
crotch, keeping the tape horizontal.
E. Inner Leg
Stand against a wall, ask someone else to
measure from the crotch to the bottom of
your leg.
F. Outer Arm
Measure from shoulder (Humerus) to wrist.
G. Height
Stand against a wall, ask someone else to
measure from the floor to the top of your
head, keeping the tape vertical.
G
H
F
G
A
B
C
D
E
F
A
B
C
D
E

23 EN22 EN
WOMEN’S SIZE GUIDES TECHAIR® 3
SIZE XS S M L XL XXL
A. CHEST (CM) 74 80 80 86 86 90 90 94.5 94.5 99 99 104
B. BUST (CM) 78 84 84 90 90 94 94 98.5 98.5 103 103 108
C. WAIST (CM) 58 64 64 70 70 74 74 78.5 78.5 83 83 88
D. HIP (CM) 82 88 88 94 94 98 98 102.5 102.5 107 107 112
G. OUTER ARM
(CM) 50 52.5 52.5 55 55.5 57.5 58 59.5 60 61.5 61.5 62.5
H. HEIGHT (CM) 157 162.5 162.5 168 168.5 172 172.5 176.5 176.5 180.5 180.5 182.5
A. CHEST (IN) 29 1/8 31 1/2 31 1/2 33 7/8 33 7/8 35 3/8 35 3/8 37 1/4 37 1/4 39 39 41
B. BUST (IN) 30 3/4 33 1/8 33 1/8 35 3/8 35 3/8 37 37 38 3/4 38 3/4 40 1/2 40 1/2 42 1/2
C. WAIST (IN) 22 7/8 25 1/4 25 1/4 27 1/2 27 1/2 29 1/8 29 1/8 30 7/8 30 7/8 32 5/8 32 5/8 34 5/8
D. HIP (IN) 32 1/4 34 5/8 34 5/8 37 37 38 5/8 38 5/8 40 3/8 40 3/8 42 1/8 42 1/8 44 1/8
G. OUTER
ARM (IN) 19 3/4 20 5/8 20 5/8 21 5/8 21 7/8 22 5/8 22 7/8 23 3/8 23 5/8 24 1/4 24 1/4 24 5/8
H. HEIGHT (IN) 61 3/4 64 64 66 1/8 66 3/8 67 3/4 67 7/8 69 1/2 69 1/2 71 71 71 7/8
Table 4b
HOW TO MEASURE WOMEN’S
A. Chest
Measure around the fullest part, under the
armpits, keeping the tape horizontal.
B. Bust
Measure around the fullest part of the bust,
keeping the tape horizontal.
C. Waist
Measure around the natural waist line, inline
with the navel, keeping the tape horizontal.
D. Hip
Measure around the fullest part of your hips,
about 20cm below waist line, keeping the tape
horizontal.
E. Thigh
Measure around the thigh just below the
crotch, keeping the tape horizontal.
F. Inner Leg
Stand against a wall, ask someone else to
measure from the crotch to the bottom of
your leg.
G. Outer Arm
Measure from shoulder (Humerus) to wrist.
H. Height
Stand against a wall, ask someone else to
measure from the floor to the top of your
head, keeping the tape vertical.
G
H
F
G
A
B
C
D
E
F
A
B
C
D
E

25 EN24 EN
7. Health and Age Restrictions
The System must not be handled by children at any time.
In the event of a crash, inflation of the System will cause sudden
pressure across the back and torso. This can cause discomfort and/or
pain and/or complications to users in poor health.
WARNING!
WARNING!
IMPORTANT! In Europe the Pyrotechnic Directive EU 2013/29 prohibits the sale of
pyrotechnic articles to anyone under the age of 18.
The System must not be used by persons with a history of heart
problems, or other diseases, conditions, afflictions or illnesses which
may weaken the heart.
The System must not be used by persons fitted with a pacemaker or
other implanted electronic medical devices.
The System must not be used by persons with neck or back problems.
The System must not be used by women during pregnancy.
The System must not be used by women with artificial breast
implants.
Any body piercings which coincide with the Airbag coverage area
should be removed before electing to use the System, as inflation of
the Airbag into and against the body piercings may cause discomfort
and/or injury.
WARNING!
WARNING!
WARNING!
WARNING!
WARNING!
WARNING!
Allergy Advice
Persons with certain skin allergies to synthetic, rubber or plastic materials, should carefully
monitor their skin each time the System is worn. If any irritation of the skin occurs,
immediately stop wearing the System and seek medical advice and/or attention.
8. Compatible Garment
The Tech-Air® 3 System is specifically designed to be worn OVER any protective garment,
with the limitations indicated in Section 10 “Transportation of Objects and use of the
Pockets”.
The Tech-Air® 3 System is certified as an abrasion resistant garment. Therefore, for the
entire covered area, the System guarantees protection against possible abrasions during
an accident. However, it is highly recommended to use the System in combination with a
protective garment that can guarantee protection for the uncovered areas.
The System may also be worn UNDER a protective riding garment: in this case the user must
choose a protective outer garment that does not cause discomfort and does not prevent
the functioning or inflation of the System.
Alpinestars offers many Tech-Air® Ready outer garments, specifically designed with stretch
panels to accommodate the volume of the inflated Airbag after deployment.
In addition, Tech-Air® 3 can also be worn under an Alpinestars’ Tech-Air® Compatible
garment.
Even if Tech-Air® Ready garments are specifically designed according
to certain standard sizing criteria to be used with Tech-Air® Systems,
always try the outer garment together with the System in order
to correctly select the appropriate fit according to your body size.
This will ensure that the outer garment has the necessary space to
accommodate the System in its inflated state and that the System
does not cause discomfort or prevent the correct functioning of the
System when it expands.
WARNING!
Compatibility with any outer garment
If Tech-Air® 3 is used under an outer garment that is not Tech-Air® Ready, or in case of any
doubts, follow the procedure described below to check if your outer garment is compatible
with the System. Remember to ensure that you select an outer garment that has the proper
fit (providing 4 cm of space around the circumference of the upper body to accommodate
the inflation of the airbag) and should any protectors be present on such outer garment,
that the protectors are correctly positioned. If the outer garment you have chosen is
made of leather or any different non-stretchable material, it must have stretch panels to
accommodate the inflated Airbag after deployment, if it does not have stretch panels then
you should NOT wear it and instead choose another garment that fits the criteria and will
be able to expand to accommodate the inflation of the airbag in the event of a deployment.

27 EN26 EN
Upon inflation, the Tech-Air® 3 System’s Airbag covers chest and fullback area, accordingly,
the System must not be used inside a protective garment, if such garment has insufficient
space to accommodate the inflation of the Airbag, in order to prevent discomfort in case
of deployment.
Here some important warnings and guidelines regarding compatibility of Tech-Air® 3 with
any outer garment:
A A1
BODY MEASURE GARMENT MEASURE
Figure 8
The Tech-Air® 3 System must ALWAYS be used with a properly
fitting outer garment to the user’s appropriate body size. Use of the
System inside an incorrectly sized outer garment, or with an outer
garment that is not compliant with the size check recommendations
above, may result in the System malfunctioning or failure and injury,
including severe injury and/or death.
Tech-Air® 3 in sizes smaller than size “S” must not in any case be
worn under a protective outer riding garment and shall be worn only
OVER the protective outer garment.
Tech-Air® 3 in sizes “S” or larger shall be worn with a Tech-Air®
Ready Alpinestars’ outer garment of the same size of the System
or with any Alpinestars’ outer garment that is not Tech-Air® Ready
provided that the size of the Alpinestars’ outer garment is one size
larger than the size of the System or regardless of whether it is an
Alpinestars’ outer garment or not meets the following criteria: For
the chest area, measure the circumference of the chest (A) and the
garment width on the chest region (A1). The garment is compatible
with Tech-Air® 3 System if A1 > 0.5 x A + 12 cm (A1 > 0.5 x A + 4.72
in) (see figure 8 below)
WARNING!
WARNING!
WARNING!
Figure 9
9. System Installation and Fitting
For the correct use of Tech-Air® 3 System, the user must go through the following steps:
1. Put on the System and fix the Airbag present in the chest area using the magnetic
buttons present on the vest (Figure 9).
2. Close the Activation Zip (1) from the bottom to the top and wait for the System to switch
on
3. The correct closure of the Activation Zip (1) and the switching on of the System are
signalled by the switching on of the LED Display (2) and by the presence of a vibration in
the same area
4. Once the System is switched on, check the LED Display (2) to verify that the System has
started correctly (see Section 13 “LED Display Indications”). In particular, the user must verify
that, after the System start-up, no System fault is present.
Magnetic buttons
Figure 9
Figure 9B
Magnetic buttons

29 EN28 EN
5. Once the Tech-Air® 3 System is switched on (see Section 13 “LED Display Indications”), the
System is ready to deploy under the conditions explained in Section 3 “Tech-Air® Envelope
of Protection”.
It is imperative that the System is fitted correctly in order to provide
the maximum potential protection in the event of an accident. Once
worn, be sure that the lateral elastic panels are stretched and fit
correctly, otherwise they may not work properly during the Airbag
inflation.
In case the System is used under an outer garment be sure to
follow the instructions of Section 8 “Compatible Garment”. If outer
garments are too small, they will cause severe discomfort when the
System is inflated. In case of doubt or questions regarding proper fit,
please seek advice from an authorized Alpinestars’ Dealer.
Always ensure that the Activation Zip (1) is open when the Tech-Air®
3 System is not worn by the user; check the LED Display (2) to verify
that the System is not turned on.
WARNING!
WARNING!
WARNING!
10. Transportation of Objects and use of the Pockets
When using Tech-Air® 3 System, you must pay particular attention to the objects which are
placed inside the pockets present in System, as well as to the objects that are in the pockets
of the over and/or under garment. For example:
- Sharp or pointed objects placed in pockets may pierce the Airbag and will compromise the
inflation of the Airbag.
- Bulky objects may limit the Airbag expansion after deployment, potentially reducing the
effectiveness of the Airbag and/or making the System feel much tighter when inflated,
thereby increasing discomfort or causing distraction or injury.
IMPORTANT! Particular attention should also be paid to the contents of the internal
breast pocket. Only flat objects such as a wallet should be stored within the
internal breast pocket.
Provided that they fit comfortably inside the pockets, only blunt
objects should be transported in the System and garment’s pockets.
Under NO circumstances should a user attempt to transport objects
of any size or shape, including sharp or pointed objects, that will
be tightly stuffed inside the System and garment’s pockets, as such
objects will cause injury to the user and/or damage to the Airbag
when the System becomes inflated.
During the Airbag inflation the objects contained in the pockets may
be submitted to a notable sudden stress. Therefore, avoid to put
delicate objects in the pockets that may be damaged by an inflation.
WARNING!
WARNING!
IMPORTANT!
IMPORTANT!
IMPORTANT!
The battery will only recharge when the ambient temperature is between
0°C and 40°C (32°F – 104°F).
If the battery is not periodically charged, it may take longer to fully charge
it.
Users should note that the System has been tested to be safe when used
in combination with common backpacks loaded up to a maximum of 6 kg
(approximately 13 pounds) in weight. In any case, the user must check that
the backpack will allow the correct volume increase of the Airbag during
the inflation, according to the guidelines reported in Section 8 “Compatible
Garment.”
11. Battery Charging
The Tech-Air® 3 Airbag System is supplied with a Magnetic Charging Cable (8) and a Type
C USB Adapter (7), for an easy and fast plug-in to the Type C USB Recharge Port (6). It is
possible to access to the USB Recharge Port (6) through the opening present in the inner
part of the vest, below the LED Display (2).
Any standard USB charger may be used to recharge the Tech-Air® 3 System. The current
absorption during recharge is approximately 1 Ampere. The user should check that the used
charger is capable to supply such a current. Lower current capability of the charger may
result in longer charging time.
Fully charge the System before the first use. To do this, connect the supplied Magnetic
Charging Cable (8), or a standard Type C USB charging cable, to the Type C USB Recharge
Port (6) present on the LED Display (2), accessing it through the appropriate opening in
the vest. Once on charge, the LED Display (2) will display a different combination of solid
and blinking LEDs, according to the description provided in “LED Display Indications” (See
Section 13).

31 EN30 EN
Do not leave the System unattended while charging the battery.
Charge only in a dry location with a temperature range of 0°C to
40°C (32°F – 104°F).
WARNING!
When using a USB charger, for a safe operation always ensure that
it is compliant to EN 62368-1 as a class 1 (ES1) and class 1 (PS1) or 2
(PS2) power source, with a maximum output current of 2 Amperes.
The System should be recharged as soon as possible when the red
Battery Level LED light flashes, as this indicates a low battery level.
In order to activate the Tech-Air® 3 System, the Activation Zip (1)
must be correctly closed taking care that the Airbag in the chest area
is positioned correctly by closing the magnetic buttons.
WARNING!
WARNING!
WARNING!
: The System may be charged by connecting it to a computer, or to an
alternative Micro USB Charger. However, if the current output is under 1
Ampere, the charging times will be longer than those stated above.
Tip:
Charging and Use Times
Approximately 4 hours are required to recharge a discharged battery with a standard
USB Charger capable to supply at least 1 Ampere. A fully charged battery will provide
approximately 40 hours of use. If limited time is available, charging the battery for
approximately 1 hour will provide approximately 10 hours of use.
If, during the usage, the battery charge gets very low and the System is going to switch off,
the LED Display (2) will alert about this condition with a short vibration (~1s). The switching
off of the System is signaled with a long vibration(~3s).
12. System Operation
a) Switching On the System
To switch on the System, close completely the Activation Zip (1) from the bottom to the top.
An internal sensor detects that the Activation Zip (1) is closed and the System will switch
on. The switching on of the System is signalled by the switching on of the LED Display (2)
and by the presence of a short vibration (~1s). in the same area. At this point, the user
MUST check the LED Display (2) to verify that the System starts correctly. See “LED Display
Indications” in Section 13 below for the meaning of the LED indicator lights.
If the System does not switch on (no LED Indications present) check that
the Activation Zip (1) has been correctly closed. In addition, check that
the Tech-Air® 3 battery has a sufficient charge. If the problem persists,
contact Tech-Air® Support (see Section 19 “Tech-Air® Support”).
Tip:
The battery and the status of the Tech-Air® System can be checked by
connecting the System to the Tech-Air® App. When the System Check has
been successfully passed and the System is active, the Tech-Air® App will
display the indication “System On.”
System inactivation can be “forced” directly using the Tech-Air® App. This
functionality can be useful in case the user wants to turn off the Airbag
protection, for instance before undertaking some heavy off-road riding
[please note that the System cannot be turned on again by means of the App.
To turn on the System, open and close the Activation Zip (1)].
b) System Check and activation for “Race Mode”
After the System is correctly turned on, the System will start performing the System Check.
This operation is indicated by a solid yellow LED indicator light. During this phase, the
System checks if it is correctly worn by the user. During the System Check, the System will
not deploy. This phase may take several seconds.
Whilst the System Check is being performed, the System is looking for the user’s body
movements to conduct one or all of the following activities:
• Walking (including up and down stairs).
• Mounting the motorcycle.
• Riding the motorcycle.
Note that the following activities are unlikely to pass the System Check:
• Zipping up the jacket without wearing it.
• Standing still.
• Sitting down – INCLUDING sitting on the motorcycle with the engine at idle.
When the System Check is passed, a solid blue LED indicator light will illuminate and the
LED Display (2) will vibrate two times.

33 EN32 EN
The Tech-Air® 3 System will be fully active (i.e. ready to deploy)
only after having started riding for approximately 10 seconds. Once
activated, the System will remain active even if the rider stops, and
until the System is manually switched off, to offer protection also in a
stationary condition in case the motorcycle is hit by another vehicle
as described in the Envelope of Protection conditions (see Section 3
“Tech-Air® Envelope of Protection”).
The user MUST ALWAYS check the LED Display (2) after the System
Check to confirm that the solid blue LED indicator is illuminated
before starting to ride/use the Tech-Air® 3 System. The System will
not deploy if the solid blue LED indicator is not present on the LED
Display (2).
ALWAYS switch the System off by opening the Activation Zip (1) when
you are not riding a motorcycle, even if you continue to wear the
System. Although the System has been evaluated for a number of
non-riding activities, keeping the System switched on and/or active
increases the possibility of an unwanted deployment and drains the
battery. So as a rule, when not riding, always open the Activation
Zip (1).
WARNING!
WARNING!
WARNING!
c) Switching Off the System
Turn the System off by opening the Activation Zip (1). The System will shut down after
approximately 1 second. Confirm that the System is off by checking that the LED Display (2)
is switched off. A long vibration (~3s). of the LED Display (2) will confirm that the System
is no longer activated.
To keep the System switched off, keep the Activation Zip (1) open as shown in Figure 10.
Always keep the System in this condition while stored, transported, or shipped (see Section
14 “Cleaning, Storage and Transportation”).
Note that the following activities are unlikely to pass the System Check:
• Zipping up the jacket without wearing it
• Standing still
• Sitting down – INCLUDING sitting on the motorcycle with the engine at idle.
If the System Check is passed, a solid green (3a) LED indicator light will illuminate.
When not in use and being stored, transported, or shipped, the
System must be turned off by leaving the Activation Zip (1) open.
This prevents the System from accidentally switching on and
inadvertently deploying, and it will preserve battery and battery life.
WARNING!
System Switch O: show Activation Zip Open
CHASSISNUMBER:
0000000
L
CHASSISNUMBER:
0000000
L
CHASSISNUMBER:
0000000
L
Figure 10
IMPORTANT! Even when the System Check has successfully been completed, the System
will automatically switch off if the System detects:
- a position incompatible with the normal usage of the System or
- no movements for more than 10 minutes. When either of the above
situations occur, open and close the Activation Zip (1) to restart the System
and perform a new System Check.

35 EN34 EN
13. LED Display Indications
The LED Display (2) has RGB LEDs which are used to indicate the status of the System.
(1) System Fault: The Operating mode will show a System Fault in the case of an “Empty Gas
Canister” or a “System Error” (see Section 18, “Troubleshooting”).
(2) System Active: The Operating mode will show the System Active in the case where the
System Check is successfully passed (see Section 12, “System Operation”).
LED Indications During Normal Use
1
2
System Fault: Operating
Mode that verifies in case of
“Empty Gas Canister” or
“System Error” (see Section
18, “Troubleshooting”)
System Active: Operating
Mode that verifies in case
the System Check is
successfully passed (see
Section 12, “System
Operation”)
Turn on
LED Check
Street
Mode
Battery Level Indication
Under 4 hours 4 to 8 hours Over 8 hours
System Check
System Active
System Fault
System OFF System ON
In case of
Low Battery
In case of
Low Battery
System OFF, but
still connected
to the App
3s
Min.
10s
1 2
(1s)
(3s)
(1s)
System
Start Up
System
Check
Standard
Operating
Mode
Duration
Short
vibration (1s)
Symbol
2x short vibrationshort vibration long vibration
fast blink medium blinkslow blinksolid
Under 8 hours
8 to 18 hours
18 to 30 hours
Fully charged
Battery Recharge Glossary
System
Start Up
Street
mode
Battery Level Indication
Under 4 hours 4 to 8 hours Over 8 hours
System Check
System OFF System ON
In case of
Low Battery
In case of
Low Battery
System Fault: Operating
Mode that verifies in case
of “Empty Gas Canister” or
“System Error” (see Section 18,
“Troubleshooting”)
System Active: Operating
Mode that verifies in case the
System Check is successfully
passed (see Section 12, “System
Operation”)
Turn ON
System Fault System Active
System OFF, but
still connected to
the App
Led Check
System
Check
Standard
operating
mode
Glossary
LED Indications During Recharge
Battery Recharge
1
2
System Fault: Operating
Mode that verifies in case of
“Empty Gas Canister” or
“System Error” (see Section
18, “Troubleshooting”)
System Active: Operating
Mode that verifies in case
the System Check is
successfully passed (see
Section 12, “System
Operation”)
Turn on
LED Check
Street
Mode
Battery Level Indication
Under 4 hours 4 to 8 hours Over 8 hours
System Check
System Active
System Fault
System OFF System ON
In case of
Low Battery
In case of
Low Battery
System OFF, but
still connected
to the App
3s
Min.
10s
1 2
(1s)
(3s)
(1s)
System
Start Up
System
Check
Standard
Operating
Mode
Duration
Short
vibration (1s)
Symbol
2x short vibrationshort vibration long vibration
fast blink medium blinkslow blinksolid
Under 8 hours
8 to 18 hours
18 to 30 hours
Fully charged
Battery Recharge Glossary
1
2
System Fault: Operating
Mode that verifies in case of
“Empty Gas Canister” or
“System Error” (see Section
18, “Troubleshooting”)
System Active: Operating
Mode that verifies in case
the System Check is
successfully passed (see
Section 12, “System
Operation”)
Turn on
LED Check
Street
Mode
Battery Level Indication
Under 4 hours 4 to 8 hours Over 8 hours
System Check
System Active
System Fault
System OFF System ON
In case of
Low Battery
In case of
Low Battery
System OFF, but
still connected
to the App
3s
Min.
10s
1 2
(1s)
(3s)
(1s)
System
Start Up
System
Check
Standard
Operating
Mode
Duration
Short
vibration (1s)
Symbol
2x short vibrationshort vibration long vibration
fast blink medium blinkslow blinksolid
Under 8 hours
8 to 18 hours
18 to 30 hours
Fully charged
Battery Recharge Glossary
1
2
System Fault: Operating
Mode that verifies in case of
“Empty Gas Canister” or
“System Error” (see Section
18, “Troubleshooting”)
System Active: Operating
Mode that verifies in case
the System Check is
successfully passed (see
Section 12, “System
Operation”)
Turn on
LED Check
Street
Mode
Battery Level Indication
Under 4 hours 4 to 8 hours Over 8 hours
System Check
System Active
System Fault
System OFF System ON
In case of
Low Battery
In case of
Low Battery
System OFF, but
still connected
to the App
3s
Min.
10s
1 2
(1s)
(3s)
(1s)
System
Start Up
System
Check
Standard
Operating
Mode
Duration
Short
vibration (1s)
Symbol
2x short vibrationshort vibration long vibration
fast blink medium blinkslow blinksolid
Under 8 hours
8 to 18 hours
18 to 30 hours
Fully charged
Battery Recharge Glossary
1
2
System Fault: Operating
Mode that verifies in case of
“Empty Gas Canister” or
“System Error” (see Section
18, “Troubleshooting”)
System Active: Operating
Mode that verifies in case
the System Check is
successfully passed (see
Section 12, “System
Operation”)
Turn on
LED Check
Street
Mode
Battery Level Indication
Under 4 hours 4 to 8 hours Over 8 hours
System Check
System Active
System Fault
System OFF System ON
In case of
Low Battery
In case of
Low Battery
System OFF, but
still connected
to the App
3s
Min.
10s
1 2
(1s)
(3s)
(1s)
System
Start Up
System
Check
Standard
Operating
Mode
Duration
Short
vibration (1s)
Symbol
2x short vibrationshort vibration long vibration
fast blink medium blinkslow blinksolid
Under 8 hours
8 to 18 hours
18 to 30 hours
Fully charged
Battery Recharge Glossary
IMPORTANT! The solid blue LED light indicates that the System is on.
Under 8 hours
8 to 18 hours
18 to 30 hours
Fully Charged
solid slow
blink
fast
blink
medium
blink
short
vibration
2x short
vibration
long
vibration
Duration
Any LED indication different from the solid blue LED light indicates
that the System is not active and accordingly will NOT deploy in a
crash.
WARNING!

37 EN36 EN
14. Cleaning, Storage and Transportation
Vest Cleaning
The vest can be washed according to the instructions reported on the care label.
Before washing, it is necessary to remove the Airbag and any electronic components that
constitutes the System.
To remove the Airbag, follow the instructions below:
1. Access the opening in the inner part of the vest by opening the zip and the hook-and-loop
patches (Figure 11).
2. Access the Inflator Housing (4) and disconnect the cable connected to the battery and the
squib connector from the inflator (Figure 12).
CHASSISNUMBER:
0000000
L
1
2
CHASSISNUMBER:
0000000
L
Figure 11
Figure 12
CHASSISNUMBER:
0000000
L
1
2
CHASSISNUMBER:
0000000
L
Figure 11
Figure 12
Figure 11
Figure 12
3. Remove the Inflator Housing (4) from its pocket by opening the two fastening hook-and-
loop patches (Figure 13).
4. Detach the Airbag from the vest by opening all the connection clips. The clips are
arranged as shown in the Figure 14.
The removal of the inflator housing doesn’t require that it be opened.
Do not open the Inflator Housing (4). Only authorized Alpinestars
Dealers may open the Inflator Housing (4) for servicing purposes.
WARNING!
Figure 13
Figure 14
CHASSISNUMBER:
0000000
L
Figure 13
B1 B6
B2
B4
B3
B5
C1
CHASSISNUMBER:
0000000
L
3
1
2
B1
B2
B3
B4
B5
B6
C1
Figure 14

39 EN38 EN
Figure 15
Figure 16
5. Regarding the front part of the Airbag that covers the chest area, open the clip, detach
the hook-and-loop patches placed on the front and back of the Airbag. Finally, remove the
Airbag through the aperture present above the right sleeve (Figure 15).
To remove the electronic components, follow the instructions below:
1. Access the Electronic Control Unit (3) present in the pocket located on the back of the
System. To access the pocket, open the vest using the zip and hook-and-loop patches
present on the inner part of the vest.
2. Disconnect the cable that powers the LED Display (2), indicated in Figure 16.
Figure 15
CHASSISNUMBER:
0000000
L
CHASSISNUMBER:
0000000
L
89/686/EECCATII
SAB1
AIRBAGMODULE
0080.P1.14.XXXXXXX
45-50 cm
0080
AIRBAG
1FB
CHASSISNUMBER:
0000000
L
Figure 16
Airbag
Use only a cloth dampened with water to clean the Airbag (fabric and plastic parts). Solvents
or chemical cleaners must not be used, as they may compromise the integrity of the System.
3. Remove the Electronic Control Unit (3) from the pocket taking care to remove the cables
previously disconnected from the Inflator Housing (4).
4. Remove the LED Display (2) accessing the pocket on the left side of the vest and pulling
out the cables previously disconnected from the Electronic Control Unit (3).
After cleaning the vest, proceed with the correct reassembly of the electronic components
and of the Airbag on the vest, following the instructions reported above in the reverse order.
IMPORTANT! Particular attention must be paid to the insertion of the area of the Airbag
that protects the chest area to avoid twisting the narrower part of the
airbag that passes up and over the right shoulder. The obstruction of the
canal could compromise the correct inflation and therefore the protection
of the Airbag in the chest area.
Always check that all the connection clips are properly closed after
the reassembly of the Airbag on the vest.
Under NO circumstances should the Airbag be washed in a washing
machine, submerged in water, tumble dried or ironed. This may cause
permanent damage to the System and cause malfunction.
Detach the Airbag only to wash the vest. After washing the Airbag
vest, reinsert and reposition the Airbag into the vest following the
instructions reported above. The Airbag is a very critical safety part
of Tech-Air® 3 System. Always use extreme caution when handling
the Airbag. Any scratches, holes, or damage to the Airbag will lead to
the System’s malfunction, accordingly if there is any such damage to
the Airbag do not use the System and send the System to Alpinestars
or to an authorized Alpinestars’ Tech-Air® Service Centre for service.
WARNING!
WARNING!
WARNING!

41 EN40 EN
Storage
Differently from other Alpinestars’ Tech-Air Systems, the Tech-Air® 3 System does not
come with an integrated back-protector. For this reason, the System can be easily folded to
facilitate its transport, for example, the Tech-Air® 3 can be easily stored inside the top case
or the side bags of the motorcycle. The System is also equipped with an Elastic Band (5)
that can be used to facilitate the folding of the System. The Elastic Band (5) is contained in
a small pocket on the left side of the System. Remember to hide the Elastic Band (5) inside
the pocket when not in use.
When not in use, it is recommended that users store the System in its original packaging.
It may be stored flat provided that no heavy or sharp objects are placed on top of it. The
System can also be stored hung up on a hanger. The System should always be stored in a
cool, dry place, out of direct sunlight.
The battery of the System slowly self-discharges, even if the System is not turned on,
especially if the System is stored in a warm environment. It is thus recommended that even
whilst in storage, the System be periodically recharged (at least once every 18 months) to
prevent battery drainage and shortening of the battery life.
Do NOT leave the System in direct sunlight inside a closed car, or
otherwise exposed to high temperatures. High temperatures will
damage the battery and possibly the electronic components of the
unit.
The System’s storage temperature must be between -20°C and +60°C
(-4°F to 140°F). Exposure to a temperature lower than -20°C (-4°F)
may cause permanent damage to the battery.
Zipping up the vest and closing the Activation Zip (1) will cause
the System to switch on. To prevent this, it is essential that the
Activation Zip (1) is open, in order to prevent accidental activations
of the System. Failure to do so will cause the System to switch on,
which will cause the battery to drain. When storing the System
remember to keep the Activation Zip (1) open and check that there
are no indicator lights illuminated on the LED Display (2).
WARNING!
WARNING!
WARNING!
IMPORTANT! If the battery becomes fully drained, the System may require a longer
time to recharge. It is thus recommended that the System be periodically
recharged as indicated.
Transportation
Users should be aware that the Tech-Air® 3 is classified as a Life-Saving, self-inflating
Jacket, UN 2990 class 9. Detailed instructions for the transportation of the System can be
found in the Product Information Sheet (PIS) related to the Tech-Air® 3 System available in
the Documentation Section of the TechAir® App.
When transporting the System by air, users are strongly recommended to download and
print a copy of the Product Information Sheet (PIS) in case they are questioned about the
System by airport staff.
Note: Please be advised that not all countries worldwide permit the import of pyrotechnic
devices. Prior to traveling, users should check with the appropriate authorities of countries
through which and to which they will be traveling to determine if the entry of System will
be permitted or not.
15. Maintenance, Servicing, Lifespan and Disposal
Garments with electronically activated airbags are critical safety systems which must be
maintained in good working order to ensure their correct function. If not, they may not
function properly or at all.
Maintenance
Prior to each use, the user should conduct a check of the System, looking for any signs of
wear (loose threads, holes, marks) or damage. If any signs of wear are found, the System
should be inspected further by an authorized Alpinestars Tech-Air® Service Centre.
Servicing
Alpinestars recommends that the System be routinely inspected at least every 2 years or
after 500 hours of functioning by Alpinestars or an authorized Alpinestars Tech-Air® Service
Centre. During the inspection service, the Airbag and the electronic unit’s components will
be examined. Inspection can be requested directly at an Alpinestars Tech-Air® Dealer. The
following work is undertaken as part of the inspection service:
• All components are removed from the System and the vest is washed.
• The diagnostics of the electronic unit are checked (and firmware upgraded, if applicable).
• The expiration date of the high pressure inflator is checked, and if needed the inflator is
replaced.
• The Airbag is inspected for any sign of wear and/or damage.
• The System is reassembled into the vest and checked functionally.
The Product Information Sheet (PIS) can be downloaded using the Tech-Air®
App in Settings -> Documents.