An electronic airbag is the single biggest step forward in rider safety since the back protector — but it only works if the suit around it is built for deployment. A bag that inflates inside a suit with no room to expand restricts your chest. That's the problem expansion zones solve.
What 'airbag compatible' actually means
Every AT1 suit is engineered with universal expansion zones — panels and stretch sections placed so that when an airbag deploys, the suit gives it room. The bag inflates, the suit accommodates it, and deployment doesn't restrict your respiration.
- Alpinestars Tech-Air — expansion geometry sized for the Tech-Air Race system
- Helite — compatible with Helite electronic and mechanical systems
- AT1 electronic airbag — the integrated option selectable in the configurator
Inside or outside?
Most race airbags are worn inside the suit, under the leather. The suit is cut to your measurements with the airbag fitted — which is why the measurement form asks which system you run. A suit measured without the airbag will be too tight with it; one measured with it keeps the correct race fit whether the bag is in or out.
If you select the AT1 airbag option in the configurator, the integration is designed in from the start — no retrofitting, no compromise on the fit profile.
After a deployment
Follow your airbag manufacturer's service procedure — electronic systems typically need a cartridge or service after firing. The suit itself should be inspected for seam stress around the expansion zones before going back on track. If it took a slide as well, treat it like any crash: check the recessed seams, sliders and stretch panels before the next session.