STAY AFLOAT! The BCA Float avalanche airbag system is tested and proven to reduce trauma and keep you on the surface during an avalanche. Float airbags provide additional trauma protection to the head, neck, and upper body. Positioning of airbag behind the head and away from the hips and arms allows for clear peripheral vision and the ability to escape the slide. BCA Float E2 electronic airbag systems are powered by the Alpride E2 supercapacitor system with a 162-liter airbag and are fully rechargeable and has no TSA restrictions. BCA Float 2.0 systems use a 150-liter compressed air, single-chamber airbag, and patented super-efficient Venturi system. Float 2.0 air cylinders are easy to refill at one of over 400 BCA refill/exchange centers worldwide.