As a result

It provides extra support at the top of the boot for increased stability and response

Power Strap provides additional support when you need it

Sits comfortably at waist

BCA Float E2 25 Airbag Avalanche Pack Black 15 As a resultBCA's slimmed down Float E2 airbag pack designed for close in slackcountry riding. Features: Volume: 1,281 cubic inches 21 liters (with e2 system) 1,525 cubic inches 25 liters (without e2 system). Weight: 5. 869 lb 2,662 g (with e2 system) 3. 354 lb 1,521 g (without e2 system). Torso size: s m: 15" 18 38. 1 45. 7 cm l xl: 17 21 43. 1 53. 3 cm. Material: pu coated nylon 420d ripstop pu coated nylon 210d double ripstop lining 100d robic dynatec wr pux2.