injection-molded shoulder straps with foam padded air-mesh back panel with a spine channel and sheet for extra back support webbing hipbelt certified by the American Chiropractic Association large main compartment with a padded, fleece-lined 16'' laptop sleeve front compartment with internal organization, a fleece-lined tablet sleeve and a variety of pockets 2 mesh water bottle pockets top grab handle side compression straps bike-light loop daisy-chain webbing 400d nylon body with non-pfc durable water-repellent finish