Low-profile main compartment has a key fob and CD/MP3 player pocket with PVC headphone grommet. Equipped with one 500ml GE Lexan shatter-resistant bottle. * Adjustable side compression straps secure contents of pack. Contoured webbing daisy chain to attach a carabiner or other gear. * Vapel mesh Airflow padded back panel wicks body moisture and provides superior comfort. * Durable waist belt, with webbing keepers, adjusts to fit waist sizes 18 to 55-Inch. Reflective accent piping provides added safety at night. * Size: 17.0" x 8.0" x 3.5" Capacity: 153.0 cubic-Inch Weight: 1.32 lbs. Materials: Grid-Weave Duralite, 600-Denier Duralite