Large, multi-compartment design. Angled, adjustable compression straps. Premium organizer compartment with * Zippered accessory pocket on the front. MP3 player pocket with headphone port * S-shaped, VAPEL mesh AIRFLOW padded shoulder straps with Suspension System and integrated media/cell phone pocket * Comfortable padded core back panel. Contoured grab handle. Monster hook for attaching extra gear. * Materials: Duralite Ripstop, 600-denier Duralite, Waffle Weave Size: 19.5" x 13" x 7" Capacity: 2382 cubic-Inch