Yen's Mono-Strap Backpack, 6BP-05 Adjustable padded shoulder strap with cell phone sleeve pocket, convenient carrying hanging handle, roomy main zipper compartment with an inside hanging pocket IPOD/MP3 headphone exit port, front zippered pocket with key holder and organizer fully padded back panel, bottom compression straps for holding jacket etc side accessory zippered pocket, and a mesh side water bottle pocket. Size:13.5'' x 20'' x 6''.