Designed for road riding, the Nucleon PLASMA Divided Chest Protector is an Alpinestars chest insert that provides discreet, integrated impact protection. It is certified to EN 1621-3:2018 Level 1, made from bio-based viscoelastic PLASMA material, certified by the USDA, and features an extensive perforated design for airflow and a soft lining for comfort. The two-component design flexes naturally, reduces weight, and fits all current and previous Alpinestars jackets, providing breathable protection for everyday use.

Key Features of the
The innovative PLASMA M design features extensive perforations across the entire surface, ensuring maximum breathability and heat dissipation.
The soft lining ensures the structural integrity of the protector by preventing potential tearing.
Compatible with all Alpinestars apparel, both current and previous models.

Key features

• Chest protector, certified to CE Level 2 standards, features a composite construction and a central semi-rigid thermoplastic zone on the Nucleon PLASMA chest protector for better distribution of impact force at critical points.
• The innovative design of the PLASMA M ensures maximum airflow and efficient heat dissipation.
• The soft backing prevents tearing and maintains the structural integrity of the protector.
• The fully adjustable design ensures maximum comfort during use.
• The lower side flaps provide extended coverage and additional protection for the ribs.
• A wide central strap with a buckle ensures a secure fit on Alpinestars jackets, even when the jacket is open.
• The internal silicone ribbed liners prevent slipping and keep the protector securely in place.
• The innovative design of the PLASMA M ensures maximum breathability and heat dissipation.
• The soft, comfortable backing ensures the structural integrity of the protector by preventing potential tearing.
• Fully flexible design for maximum comfort.
• Side flaps at the bottom for greater coverage and rib protection.
• The larger central section, featuring a Velcro strap on the outside, ensures a secure fit when attached to Alpinestars jackets, even when the jacket or hood is open.
• The silicone ridges on the inside prevent slipping and ensure that the protector stays in place.

The Nucleon Plasma Full Back Protector Insert is designed for road and sports riding. It is CE Level 2 certified according to the EN 1621-2:2014 and UKCA, and utilizes Nucleon Plasma technology—an eco-friendly, lightweight composite with perforations and airflow channels that ensure energy absorption and breathability. Its exceptionally flexible profile compresses and expands, providing coverage without bulging and a comfortable feel.

Key features

• Highly breathable for superior airflow and ventilation, with a soft inner lining on the side that comes into contact with the skin for optimal rider comfort.
• This exceptionally lightweight back protector is available in three sizes, from the waist to the shoulders, to accommodate all body types.
• Sixty years of innovation, extensive testing, and research have led to Plasma technology—a perfect balance between impact absorption, density, thickness, and flexibility.
• The use of Nucleon Plasma technology allows Alpinestars to customize the geometry across the entire protector, enabling extensive perforations while still far exceeding CE standards for impact performance. Another standout feature of this model is the large number of transverse and longitudinal ventilation channels for efficient heat dissipation.
• The innovative design of the Nucleon Plasma back protector allows it to compress and expand, ensuring an exceptionally flexible fit for superior rider comfort.

Protection

• In accordance with European legislation, the CE marking is a requirement for the marketing of this product. The following standards apply to this product: Back protector: Category II EN 1621-2:2014, Level 2.

Complete with 2 replacement argon cartridges, compatible with Alpinestars Tech-Air® 10 V2 airbag system.

construction:

• Inflation kit for Alpinestars Tech-Air® 10 V2 Airbag
• Argon gas cartridges for rapid deployment of the airbag
• Easy installation without tools.

The Tech-Air® 10 V2 is the logical evolution of Alpinestars’ proven innovation for MotoGP and has been specifically designed for demanding riders who want to combine maximum performance with state-of-the-art safety technology. The lightweight and slim system offers comprehensive protection for the entire upper body and hips, combining intelligent electronics with practical usability. Thanks to user-replaceable inflators, a newly developed activated harness and an integrated LED display, the Tech-Air® 10 V2 sets new standards in versatility and user-friendliness. AI-based accident detection is based on millions of kilometres driven and thousands of accident scenarios analysed, ensuring precise and situation-appropriate performance. Combined with two driving modes, Bluetooth connectivity with the Tech-Air® app and a comfortable, breathable design, the Tech-Air® 10 V2 Race system is the ideal choice for ambitious drivers who don’t compromise on the racetrack.

construction:

• Unbeatable protection covering shoulders, chest, entire back and hips
• Reduces impact force by up to 95% compared to passive protection
• Protective effect equivalent to 18 back protectors
• Dual argon inflators for full inflation (without dual filling system)
• 12 built-in sensors (3 tri-axial accelerometers and 1 tri-axial gyroscope) with AI-based accident detection
• AI-powered accident detection algorithm based on millions of kilometres and thousands of accident scenarios
• Airbag deployment in 40 ms
• Two driving modes: Race and Street.
• Race mode is activated after 10 seconds of driving at speeds above 60 km/h.
• Street mode offers wider general coverage.
• Inflators that can be replaced by the user.
• Fast charging via USB-C (1 hour of charging = 6 hours of use).
• Tech-Air® app with Bluetooth for system updates, MyRide driving information and status checks.
• Built-in LED display for greater ease of use
• Easy operation via a magnetic tab on the activated belt to switch the system on and off
• Replaceable and hand washable base layer
• Quick attachment to the base layer of the Tech-Air® 10 Race System via buckles
• Breathable airbag with air channels and perforated rear section for better airflow
• The airbag is certified for three triggers
• An integrity test is required after each trigger
• After passing the test, only the inflators need to be replaced.
• After the third trigger or if damage is detected, a full service is required.
• USB-C magnetic cable and charger included for fast, easy and convenient charging.
• Made in Italy.

Technical features:

• CE certification level 2 for chest and back.
• Total weight: 2.3 kg (size M).
• 24-hour battery life.

Content:

• 1x Alpinestars Tech-Air 10 V2 Race Airbag System
• 1x USB-C magnetic cable
• 1x charger

Additional product information

Material 69 % polyamide, 19 % elastane, 12 % polyester