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The Tuk Daypack by Indigo is proof that technical features and efficient designs are not the exclusive domain of climbing and alpine packs. Indigo daypacks, computer packs and shoulder bags all share distinctive lines, superb organization and the best materials available. Specifications Tuk DayPack: Volume: 960 cubic inches/16 liters Key Features: 3 compartment daypack. Front pocket has organization for cell phones, PDA's and other daily gear. Rear Hatchback pocket (behind the shoulder straps) includes an exit port for head phones and is perfect for iPods, CD players and extra discs. Main compartment holds enough gear for a day hike or commute to work. Low profile, dual density shoulder straps w/ rescue whistle sternum strap. Reflective piping and protective bumpers. Webbing waist belt. 3D mesh back panel. Lightweight high tenacity nylon.