The Black Diamond Covert Avalung 32 pack is a streamlined, fully-featured backcountry pack that includes an integrated AvaLung for traveling off piste. The AvaLung is built into the pack, so it's ready for use in risky terrain. The pack is built from tough, water-shedding 420d nylon and 1300d Ballistic reinforcements using a clamshell design for easy gear access. On the exterior, an adjustable ski/board attachment system, ice tool loops, compression straps and a pocket let you conveniently carry your essentials, and the right shoulder strap features a zippered hydration tube pocket. Specs: Colors: Gravel, Mustard, Black Weight: 32 L - 3 lb 7 oz Volume: 32 L - 1,953 cu in Fits: SM/MD 43-51 cm (17-20 in), LG/XL 51-58 cm (20-23 in)