To perform safe and quick attaching and detaching adjustment by loosening dial-like manual machine screws positioned in front and at the back of a base plate and sliding a reinforcing caulking pin to a dumbbell-like hole.

For this binding, for a high back leg 3 and a front belt position 7, the dial-like machine screws 6 and 7 are manually slid into the dumbbell-like holes and a boot size and a front and back stance position are adjusted. A belt is one belt, the need of adjustment is eliminated since the front belt position 7 is adjusted and fixed and it us slid to a back part by being passed through a front oblong hole 8 and tightened, it is continued from a front part to the back part and tightened by a pulling tool 11 provided in a center part and the belt front and back parts are simultaneously tightened. At the time, one belt 4 is adjusted and fixed to an approximate length by a length adjusting and fixing metal fitting 12 provided in the back part in advance. A gear-like angle adjustment plate 2 provided on the central part of the base plate 1 is made to rotate the base plate 1 by pulling a lever 5 and fix it by releasing the lever 5.