SOG Barrage Tactical Internal Frame Backpack 100% POLYESTER Imported Extra-large military-style tactical backpack with internal frame for optimal stability; extra-large main compartment great for multi-day packouts Carries comfortably on your shoulders with yoke-style adjustable, padded straps and adjustable sternum slider; padded waist belt helps support heavy loads Tactical features include MOLLE webbing for attaching a variety of optional accessories; tubing ports for accessing hydration bladder pocket (reservoir sold separately) Hook-and-loop are on front of pack for attaching a flag patch; top soft-lined pocket for eyeglasses and electronic devices Measures 13.1 x 21.6 x 8.7 inches (WxHxD) with 64.3-liter capacity; backed by lifetime manufacturers warranty