This pack represents what we think a pack should be. It is 30% lighter than any other pack in its size category. The internal frame and Hypervent Suspension represents our guarantee to your customer that they will be cool and comfortable while hauling the most insane loads possible. The Diablo has a multitude of storage pockets, which are sleek and non obtrusive, as well as dual water bottle pockets, or if you prefer, the ability to carry a 100 ounce water bladder.