Kelty put some thought into this pack when they made it. It was designed to carry big loads. The pack suspention features a padded 2 layer waist belt, sternum strap, load-lifter straps, breathable backpanel, and padded straps. The removable packbags' main compartment is top panel loading and also has a large front pocket and zippered side pockets. If you choose to get a hydration bladder, it has a place to put it as well as a sleeping bag compartment. You'll be sure to have enough room with it's 3450 cubic inch volume and it weighs in at only 9 lb 2 oz. It's constructed from Poly-Oxford Mossy Oak New Breakup & Nylon Kodra so it's sure to hold up the the elements.