Mountainsmith Men's Mayhem 35 Made from 210d Duramax Junior RipStop Nylon 11" high 22" wide Backcountry ski days, alpine climbs, and fast overnights are all within this feature rich pack's quiver of bombproof reliability Anvil AirwayTM perspiration control system Tuck away waistbelt Front panel shovel pocket Air mesh backpanel with airfl ow channel