Abstract: A monoski and releasable bindings for mounting thereon in fore and aft location are provided. The monoski bottom running surface is divided into two running surfaces separated by an intermediate channel which is not only deeper at the front end than at the back end but is also wider at the front end than at the back end. The releasable bindings permit a skier to wear conventional shoes rather than the usual stiff ski boots, permitting free movement of the skier's ankles and his feet to rotate horizontally and to pivot up and down, to maintain balance. The releasable bindings are mounted to slide back and forth lengthwise along the upper surface of the ski, the lengthwise movement being controlled by a breaking means mounted in association with the bindings.