The single-chamber R.A.S. (Removable Airbag System) is compatible with six different Mammut packs and can be transferred in minutes. The pack and system together weigh about 5.3 pounds and include all the features you’ve come to appreciate in a backcountry pack, including gear loops, straps, and an A-frame and diagonal ski carry. A fleece-lined goggle pocket sits in front of a larger pocket with safety tool organization, and inside the main compartment you’ll find the folded up airbag, a zip-up sleeve for your air cylinder and a hydration sleeve. All this and plenty of room for the rest of your gear.