Sling Backpack Urban Gray Features The Middle zippered compartment of 350 cu. In. of space with three internal pockets. The Front Top Compartment 49 cu. In has a loop fastener patch on the outside for hook loop name tapes and/or moral patches. The Front Bottom Compartment 161 cu. In. with some internal organizational pockets and a Snap-Hook keychain holder. MOLLE compatible webbing sewn onto the Bottom Front Compartment and the Sides of the backpack, to make the Sling Backpack a modular system. The backpack also features a large discreet, padded, and lockable CCW Pistol Compartment on the back with a small padlock compatible Metal Zippers padlock not included . Other features include adjustable padded single shoulder strap with quick connect buckle, adjustable side support strap with quick connect buckle, and a top heavy duty carrying handle. This is a Sling Backpack has a lot of storage space for its size with many compartments and pockets to help organiz NcStar Small Backpack/Bottle Holder Vism Small Backpack/Bottle Hldr/Urban Gry