The large main dual zippered compartment expands out to hold all your gear. Features padded back and shoulder straps, two zippered front pouches, two "secret compartment" zippered side pouches at the bottom, several sturdy exterior straps with interlocking fasteners, and a heavy duty carrying handle on the top. The ATA logo is screened on the front pocket. Measures 16" wide x 24" tall x 8" deep.