Lightweight daypack is ideal for overnights or day hikes Backpack is perfect for urban use Bag features a fleece-lined MP3 player pocket Front organization with PDA pocket and pen holders Two mesh water bottle pockets Available in red color option Thermo-molded back panel 25 liter capacity - front panel loading Dimensions: 16 inches long x 10.75 inches wide Main pocket plus secondary pocket for better organization Front stash pocket for fast storage, keep items close at hand Pen holder Water bottle pockets 600D polyester, tough durable material Reflective tape on shoulder straps for safety