To facilitate the walk wearing ski boots on the floor by putting an attach belt to the auxiliary body, having indents for preventing slips on the bottom and projections for preventing side slips on the top, to attach it to ski boots.

The walk auxiliary body 1 having projections 3 downward is made from synthetic rubber or the like. On the bottom of the projections 3 of an auxiliary body 1 are processed indents 5 for preventing slips, while on its top are put projections 6 for preventing side slips. To the sides of the auxiliary body 1 are further put clasps 4 for the belts, and an attach belts 2 for ski boot are put into the clasps 4. Thus, by attaching the auxiliary body 1 to ski boots, walk own the floor is facilitated rather smoothly keeping natural walking balance.