Description of Oakley O Backpack 4.0 Load up the Oakley O for school, overnight trips, the beach, work or city cruising. The perfect size to haul essentials, this Oakley pack optimizes comfort with an ergonomically engineered harness system, complete with sculptural foam padding. You get plenty of storage options, from side pockets with angled zips to a rear compartment with a snap for external attachments. The Oakley O Daypack top hatch secures with custom engineered quick-release clips. Stow your media player in the specialized top pocket and feed the wire through the headphone port, or use the pocket on the harness that doubles as handy storage for a mobile phone or PDA. The ideal daypack, the Oakley O is just the right size for strolls in the city and day adventures. Features: DIMENSIONS: 19" H x 14" W x 9" D (1500 cubic inches) / 48.3cm x 35.6cm x 22.9cm (24.6 liters) 3 molded utility loops CD/MP3 pocket 2 side pockets with zip closures 2 breathable mesh pockets Padded and ergonomically engineered harness and back panel Moisture-wicking shoulder straps Custom-molded rubber handle Impact-resistant hardware Abrasion-resistant bottom Bar-tacked stress points Compression-molded panel