A hunting accessory comprises a pair of essentially identical shells which are removably attachable to one another by hinges. At least one shell comprises an unbroken, continuous, waterproof hull useful as the lower portion of a blind in water or marshy areas. A second shell may include a separate openable portion with viewing openings disposed over the hunter's head and upper body when the assembly is used as a blind with a supine hunter concealed therein. The smaller portion is opened when the hunter has a shot at game in the vicinity. The device may also be used for the carriage of hunting equipment, and/or is useful as a closed container for containing and hauling loose materials (leaves, etc.) in an open vehicle. The two shells may be separated from one another, with one of the shells being useful as a game drag or the like.