This low profile, 22-liter airbag pack is a great option for lift-accessed backcountry adventures. It features a fixed shovel/ probe pocket and a large waist-belt pocket, as well as helmet- and diagonal ski-carry systems. The single-chamber airbag inflates with the help of 2,700 pounds per square inch of compressed air activated by a trigger located on the shoulder strap that can be tucked away to prevent inadvertent activation.