The Alpinestars Tech-Air 3 Motorcycle Airbag System can be worn under and over a motorcycle jacket to suit whatever it is needed for.No external connections or sensors required6 integrated sensorsPackable designEquipped with a diagonal zipperLED display on the chestStretch panels located all overBack protector pocketThe Alpinestars Tech-Air 3 Motorcycle Airbag System is specially designed for commuters and younger riders to offer effective upper body protection. It can be worn over the top of a jacket as an "over jacket". As with all Tech-Air systems, this systems provides a protective coverage to the riders chest and back for upper body protection. The chassis is constructed with a water resistant treatment for effective all-weather performance.This Tech-air system does not require any external connections or sensors on the motorcycle t be operated, this system is a fully autonomous active airbag system. It incorporates 6 integrated sensors to provide the best crash monitoring perform