Features Patent-pending reACTIV suspension with OpenAir backpanel Top-loading roll-top closure with removable top pocket for quick and clean volume adjustment Soft, breathable 3D mesh on hipbelt and shoulder straps Trekking pole/ice axe loops Dual hipbelt stash pockets, side stretch pockets and front compression stretch pocket Description Product Description DECENT FEATURES of the Black Diamond Men's Axiom 40 Pack ReActiv suspension with OpenAir back panel Top-loading roll-top closure with removable top pocket for quick and clean volume adjustment Soft, breathable 3D mesh on hipbelt and shoulder straps Dual hipbelt stash pockets, side stretch pockets and front compression stretch pocket Trekking pole/ice axe loops, hydration compatible The SPECS Material: 210d nylon ripstop and twill, 70 X 210d dobby The SPECS for Medium Volume: 2440 cubic inches / 40 liter Average Stock Weight: 2 lbs 8 oz / 1.15 kg The SPECS for Large Volume: 2563 cubic inches / 42 liter Average Stock Weight: 2 lbs 10 oz / 1.2 kg OVERSIZE ITEM: We cannot ship this product by any expedited shipping method (3-Day, 2-Day or Next Day). Even if you pick that option, it will still go Ground Shipping. Sorry for being so mean.