Ski boot device

A ski boot device fastened to a ski boot, the ski boot having a sole including a front sole section having a bottom surface including a front interaction portion which interacts with a ski binding and a rear portion, an intermediate sole section, and a rear sole section having a bottom surface including a front portion and a rear interaction portion which interacts with the ski binding, the front sole and rear sole section bottom surfaces being arranged in a common plane, said ski boot device comprising:

• (a) first and second longitudinally extending side members each including a toe portion having a lower surface flattened profile, an intermediate portion having a shaped profile, and a heel portion having a lower surface flattened profile, respectively;
• and
• (b) a plurality of attachment elements adapted for fastening said first and second side member toe portions to opposite side surfaces of the ski boot front sole section above the common plane and said first and second side member heel portions to opposite side surfaces the ski boot rear sole section above the common plane,
• said first and second side members being fastened to the ski boot with said side member toe and heel lower surface flattened portions lying in the common plane and said side member intermediate portions extending below the common plane and between the front and rear interaction portions, respectively, without interfering with the ski binding,
• said ski boot device is adapted for use during both walking and skiing.