Walking aid, for example, walking cane, walking crutches or walkers, including a gas storage container for providing a supply of at the time of the medical gases walking to the user of the instrument. The gas storage vessel is formed from a plurality of polymeric hollow vessel, having the shape of the hollow vessel is oval or spherical, are interconnected by a plurality of relatively narrow conduit portion, between the chamber thereof conduit portion is continuous It is located. Gas storage vessel comprises reinforcing filaments, the reinforcing filaments wrapped around the interconnected chambers and interconnected conduit portion, the conduit portion and the chamber in the radial direction when being filled fluid under pressure expands to restrict. Container system further attached to the gas storage vessel, to the gas storage vessel, and of for controlling the flow of fluid from here, the fluid transfer control system, respirable to the user the gases from the gas storage vessel and a gas delivery mechanism for delivering in a manner.