Explorer Arms Gear Tactical Backpack Shoulder Slip Multi-Functional Heavy Duty Sling Equipment Field Messenger Bag with Concealed Pistol Gun Holster Compartment. Perfect for use as a day pack, bug-out bag, or travel carry-on Foam padded back panel Padded, adjustable backpack straps Two roomy compartments Front zippered pocket Water resistant, durable 600 D nylon fabric; Dimensions: 12" W x 5" D x 17" H