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Alpinestars Tech‑Air® 5 PLASMA – advanced under‑jacket airbag protection for road, dirt and track
The Tech‑Air® 5 PLASMA System is Alpinestars’ next‑generation under‑jacket airbag, engineered for riders who demand lightweight comfort, all‑day wearability and multi‑environment protection. Designed for road, dirt and track riding, the PLASMA delivers full upper‑body airbag coverage while maintaining an ultra‑slim profile that fits seamlessly under most motorcycle jackets. At just 1,530 g, it is more than 25% lighter than the original Tech‑Air® 5, offering a dramatic improvement in comfort without compromising safety.
Certified to CE EN 1621‑4:2013 Level 1 for full‑back inflatable protection and built as a CE Category II PPE garment, the PLASMA provides impact mitigation across the chest, ribs, back and shoulders. The integrated Nucleon PLASMA back protector reinforces the airbag’s coverage while maintaining flexibility, ventilation and a slim silhouette. This combination of passive and active protection ensures a continuous protective envelope across the torso.
Advanced protection with full upper‑body coverage
The Tech‑Air® 5 PLASMA airbag is engineered to expand across critical impact zones, including the chest, ribs, shoulders and full back. The anatomically contoured airbag bladder features strategically placed cutaways that allow the system to expand efficiently while maintaining a controlled volume. The airbag is certified for up to six deployments before requiring replacement, offering long‑term value and reliability.
The integrated Nucleon PLASMA back protector is constructed from a viscoelastic compound co‑injected with elastomer materials, creating a structure that balances impact absorption with flexibility and airflow. Its stealth design contours around the electronics housing to maintain continuous coverage and a secure fit.
Three Riding Modes – STREET, OFF‑ROAD and RACE
To ensure optimal performance across different riding environments, the Tech‑Air® 5 PLASMA offers three selectable Riding Modes:
- STREET: everyday road riding, commuting and touring.
- OFF‑ROAD: dirt, gravel and mixed‑terrain exploration.
- RACE: track riding and high‑performance sport riding.
Modes are selected by pressing the LED Display button for two seconds, with vibration feedback confirming the change. This allows riders to adapt the system instantly to their environment.
Ultra‑lightweight, breathable and designed for all‑day comfort
The PLASMA chassis is built from ultra‑thin mono‑layer stretch mesh across the collar, underarms and front panels. This reduces material mass while maximizing airflow, making the system exceptionally comfortable in warm weather or during long rides. Moisture‑wicking treatments help regulate body temperature and keep the rider dry.
An ergonomic sleeve pattern with a deeper underarm cut reduces seam stacking and bulk, while the extended rear hem and low‑cut neckline improve coverage without creating pressure points. The chassis is engineered to align with ventilation channels on Alpinestars jackets, ensuring a direct airflow path through the mesh zones.
Single‑canister inflator and modular construction
The Tech‑Air® 5 PLASMA uses a single‑canister inflator to reduce weight and enable faster inflation. The quick‑release service cover allows riders to replace the inflator themselves where local regulations permit, minimizing downtime after deployment. The modular design also simplifies maintenance, with a removable ECU and airbag bladder for easy washing and servicing.
Battery performance and intuitive operation
With up to 30 hours of battery life per charge, the PLASMA is built for long‑distance touring, multi‑day adventures and daily commuting. USB‑C charging provides fast and convenient power delivery, ensuring the system is always ready to ride.
LED and haptic alerts provide clear feedback on system status, while automatic activation occurs when the vest is zipped, thanks to the internal magnetic sensor. This ensures the airbag is armed whenever the rider is ready to go.
Key features
- Full upper‑body airbag coverage: chest, ribs, back and shoulders
- Ultra‑lightweight 1,530 g chassis
- Over 25% lighter than the original Tech‑Air® 5
- Ultra‑slim under‑jacket profile
- Breathable mono‑layer stretch mesh construction
- Integrated Nucleon PLASMA back protector
- Single‑canister inflator with user‑replaceable cartridge
- Up to 30 hours of battery life
- Three Riding Modes: STREET, OFF‑ROAD, RACE
- LED/haptic alerts and automatic activation
- Modular design for easy servicing
- Available in eight sizes (XS–4XL)
Certification and safety standards
The Tech‑Air® 5 PLASMA System and all included protective components are CE Category II PPE certified under European Regulation (EU) 2016/425. The passive back protector meets EN 1621‑2:2014 Level 1, while the inflatable protector is certified to EN 1621‑4:2013 Level 1. The system is also certified as a Class C undergarment under EN 17092‑6:2020.
Summary
The Alpinestars Tech‑Air® 5 PLASMA is the ideal airbag system for riders who want maximum protection with minimal bulk. Its ultra‑lightweight construction, advanced protection envelope, multi‑mode adaptability and long battery life make it a premium choice for road, dirt and track riding. Designed to disappear under a jacket while delivering professional‑grade safety, the PLASMA sets a new benchmark for everyday airbag performance.
