iGuerburn Oxygen Tank Backpack Size D, Portable Oxygen Backpack for D/M15 JD/M22 Cylinder Bag O2 Tank Carrier Holder for Travel (Black)

Perfect Compatibility: Our oxygen tank backpack is sturdy and delicate, it fits only D(M-15) and JD(M-22) tanks and is perfectly compatible. The small external pocket can also hold your cell phone, wallet, charger or other small accessories.
Reinforced Shoulder Straps: The shoulder straps of the oxygen tank bag have been upgraded and reinforced many times, and the adjustable length can fit most adults, even taller or fatter people can wear it comfortably. And the chest strap buckle can also prevent the backpack from flipping forward.
Securely Hold O2 Tanks: The material of our oxygen tank holder is comfortable to wear, there are two velcro straps inside to fix the oxygen cylinder in place. And the layer of plastic reinforced hardboard at the bottom to withstand the weight of the oxygen tanks.