The cover is intended for transportation and storage of a metal-composite cylinder with compressed air. Durable waterproof fabric and 10 mm thick polyethylene foam filler protect the balloon from mechanical damage and temperature extremes. The case has convenient handles for carrying in a horizontal and vertical position. On the outside of the case there is a closable pocket for storing the filling nozzle, hose or documents. The cover closes with a zipper, all accessories are of high quality and will last a long time.