Features One climbing pack to do it all, the Epic 35 is Black Diamond's most versatile pack built to handle the full 365 days of sunny rock routes, frigid icefalls and foreboding alpine faces. This guide-style, top-loading pack employs the ergoACTIV suspension system, which uses an active, pivoting hipbelt for dynamic, responsive movement over variable terrain. Ice-tool PickPockets and ladder-lock crampon straps secure your technical gear on the approach and the descent. Description DECENT FEATURES of the Black Diamond Epic 35 Pack ergoACTIV suspension with SwingArm shoulder straps and fixed torso length Thermoformed, vented backpanel Top loading with fixed top pocket and tuck-away rope strap Ice tool PickPockets, 3-point haul system and welded crampon patch with removable bikini strap Removable padded hipbelt with fixed 25 mm webbing belt Hydration compatible The SPECS Type: Unisex Material: 420d Velocity with 420d welded abrasion The SPECS for Small Average Stock Weight: 3 lbs 8 oz / 1.59 kg Volume: 2,013 cubic inches / 33 liter The SPECS for Medium Average Stock Weight: 3 lbs 8 oz / 1.61 kg Volume: 2,136 cubic inches / 35 liter The SPECS for Large Average Stock Weight: 3 lbs 9 oz / 1.63 kg Volume: 2,258 cubic inches / 37 liter