O2 Bag Our O2 Bag is a rugged padded oxygen bag, built to be used. A zippered pocket on one end and a soft removable tray with two hook-and-loop fastened dividers. This tray sits over the lower compartment to offer easy access to your cylinder and supplies. A full length net pocket inside the padded lid holds all of your accessories. Dimensions are 36.5" x 7" x 9" Main body 36.5" x 7" x 9"