West German Bundeswehr Rubberized Gas Mask BagRubberized carrier for the German M65 Gas Mask. This waterproof shoulder bag features one main compartment and a 1 1 4 wide adjustable shoulder strap. Closed by rolling the top and secured by the attached rubber strap and post. Good: Due to age, many of the bags have become stiff. Additionally, the rubber strap may have cracks and wear on the edges. Fair: May be missing the closing strap.