Air bags in the backpack or the so-called Avalanche Air Bag systems have quickly become a mandatory part of the equipment for all extreme skiers and snowboarders who explore untouched terrain in the mountains. If you are caught in the moment before an avalanche is triggered, you pull a lever attached to the backpack's strap and the air or compressed gas pressure inflates the airbag, helping you stay close to the surface of the avalanche instead of being pulled down into the depths where survival is possible small.
