Features Patent-pending ergoACTIV suspension with OpenAir backpanel Top loading with floating top pocket Soft, breathable 3D mesh on shoulder straps and removable, interchangeable hipbelt Hipbelt stash pocket, side stretch pockets and front compression stretch pocket Retractable trekking pole/ice axe loops, removable sleeping pad straps. Hydration compatible. Description Product Description DECENT FEATURES of the Black Diamond Men's Infinity 60 Pack ErgoActiv suspension with OpenAir back panel Top-loading with floating top pocket Soft, breathable 3D mesh on shoulder straps and removable, interchangeable hipbelt (tool included) Hipbelt stash pocket, side stretch pockets and front compression stretch pocket Retractable trekking pole/ice axe loops, removable sleeping pad straps, hydration compatible Also available as women's-specific Innova The SPECS Material: 210d nylon ripstop, 420d nylon twill The SPECS for Medium Volume: 3660 cubic inches / 60 liter Average Stock Weight: 3 lbs 13 oz / 1.74 kg The SPECS for Large Volume: 3845 cubic inches / 63 liter Average Stock Weight: 3 lbs 14 oz / 1.78 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.