Abstract: An attachment for securing to a conventional ski boot to facilitate safe walking by a wearer. The device comprises a generally elastic member adapted to receive the bottom of the ski boot, the member including a first portion for receiving the toe of the boot and a second portion for receiving the heel of the boot, together with an intermediate portion extending between the toe and heel-receiving portions. The toe and heel portions each include a platform projecting below the intermediate portion. Such platforms contact the ground during the wearer's walking to enable movement of the foot and limb in a manner simulative of normal walking, without, however, requiring flexure of the boot. The platform at the heel portion is substantially thicker than that at the toe portion, typically being approximately twice the thickness of the toe platform. Both toe and heel platforms preferably comprise a resilient material such as sponge rubber.