? TANK BAG FOR M6 CYLINDERS. Convenient vertical shoulder bag design allows you carry the cylinder while keeping it concealed. Medical oxygen tank bag simplifies everyday life by providing a light-travel solution for your oxygen therapy needs. ? ADJUSTABLE CARRIER STRAP. Oxygen tank carrier features non-skid shoulder straps that are heavily padded so they won%92t create uncomfortable pressure points on your back that can be caused by the weight of the M6 cylinder. ? DISCRETE OXYGEN TANK HOLDER. Bag is designed to conceal the entire oxygen system. The cannula exits the bag through a small grommet, travels under the patient's arm, and rests comfortably over the patient's ears. ? EASY ACCESS ZIPPERED WINDOW. A clear plastic zippered window allows the patient to view the gauge contents of the cylinder without removing the cylinder from the bag, and the mesh provides superior ventilation.