Abstract: A gas expansion type shock absorbing safety cloth for autocycle drivers is disclosed which comprises; a shock absorbing tube; a gas regulator connected through gas conduits to the shock absorbing tube; one or more of compressed gas storage and discharge devices connected to the gas regulator; an ignition controller; a trigger device connected through an electric wire and a pull string to the said ignition controller; and a connector disposed an intermediate position of both the electric wire and the pull string in such a manner that it is separated upon applying of a pulling force exceeding a certain predetermined value.