Abstract: A ski boot cover is provided which is impervious to snow, moisture and wind and provides thermal insulation from the cold while permitting the wearer to manipulate adjustment devices located on the external surface of the shaft of the boot. The cover includes a body which is generally triangular. The body has a perimeter having a first, second and third side. The first side and the second side are connected by a first strip. The first side, second side and first strip define an opening for receiving the front portion of the ski boot with the first strip residing on the bottom of the boot. The first side and second side are also connected about the rear of the ski boot by a second strip. The second strip includes hook and loop fasteners.