Description Product Description 217558 Features: Extend your fresh air supply if caught in an avalanche with the AvaLung system that pulls air from the snowpack through a bivalve intake box at the shoulder and expels CO2 through an exhaust port at the lower back Durable 420-denier and 840-denier ballistic pack cloth protects your avy gear and other necessities while V-Snow suspension supports and stabilizes heavy loads Carry plenty of fluids with you and be able to drink them too to insulated hydration sleeve keeps your fluids from freezing up Get at your gear through the large panel access across the top Plenty of pocket space with zippered, stretch woven hipbelt pockets, a fleece-lined goggle pocket, zippered top pocket, ice tool PickPockets, and dedicated avy-tool organizer pocket Carry skis easily with A-frame ski carry, while you keep your helmet safely stowed in the tuck-away helmet carry sling; sled attachments for longer hauling Specifications: Capacity: 2013 cu in (S-M); 2136 cu in (M-L) Weight: 3 lb 4 oz (S-M); 3 lb 5 oz (M-L) Fits torso: 16 to 19 in (S-M); 185 to 215 in (M-L) Material: ballistic nylon Frame material: aluminum Access: top Number of pockets: main compartment +4 pockets