Super rugged construction with nylon outer shell and rubberized interior that can be carried as a bag or converts to a backpack with padded, adjustable shoulder straps, and quick release buckles that allow you to secure other field gear on the outside of the bag. Features dual padded center handles, dual end handles, internal waterproof map pocket, covered ID tag, document pouch, padded back and neck area, hard bottom with six nub feet, oversized zippers all around, double reinforced stitching, main pouch measures 30x15x12" with dual end pockets.