Brand New Mystery Ranch's Urban Assault 21-liter DPM backpack is a spacious and comfortable daypack for work, travel and trail. The 3-ZIP design allows ready access to your pack's contents, and the built-in laptop and tablet sleeves hug your devices closely to the back panel for optimal protection. Internal full-length plastic frame sheet 500 denier Cordura® for long-haul durability Cushioned mesh back panel 3-ZIP design allows quick and easy access Full access to bottom of pack Fixed harnessing Padded shoulder straps Mesh-lined lid pocket with key clip Two inner zip mesh pockets Padded sleeve holds laptops up to 15" Secondary document sleeve External water bottle pockets Daisy chains along bottom