Metalsub Tank Harness is a backplate and continuous webbing harness system without buoyancy bladder, designed to securely hold a single cylinder in applications where a conventional BCD interferes or is not needed: underwater work, use with a drysuit as a buoyancy system, extremely confined environments, or custom configurations with a separate buoyancy bladder. The low-profile rigid backplate eliminates tank movement during the dive, while the fully adjustable 50 mm webbing harness with integrated shoulder pads distributes the cylinder weight evenly. The heavy-duty cylinder clamp with cam buckle locks the tank with complete security. Quick-release buckles on shoulders, waist, and chest. Adjustable crotch strap included. Compatible with all standard single scuba cylinders.