The Jansport Equinox pack is constructed from premium 420 Denier Nylon and 840 Denier Junior Ballistic Nylon. These rugged fabrics are easy to clean and resist stains and moisture. Biovent shoulder straps which are extremely lightweight molded foam straps that conform to your body and evenly distribute pressure Two large main compartments for versatile storage Ventech lightweight, highly breathable cushioned back panel that is engineered with circulation grooves to increase ventilations and create airflow, cooling the user's back Front utility pocket with organizer keeps essentials handy Easy access V-loft pocket Front quick clip points Dual side water bottle pockets Side compression straps keep pack close to the body and manage the load Zippered front stash pocket Hydration sleeve and port Die-cut hypalon grab handle Dimensions 18.5" x 11" x 10" / 1800 cu. in. Capacity 28L EUC - excellent used condition From a smoke and pet free home