Patent ID: 7089689

Claim:
A shoe comprising: a forward region, a heel region, and a mid-foot region located between the forward region and the heel region, a medial side, a lateral side, and a width between the medial and lateral sides; an upper; a bottom surface, at least a portion of which is ground-engaging, a ground-engaging portion of the bottom surface below the heel region being made of a material; an upwardly inclined wall defining at least in part an aperture that extends through the bottom surface of the shoe, the aperture having a vertical central axis generally centered along the width of the shoe, the upwardly inclined wall having an upper perimeter with a distance around the vertical central axis of the aperture and a lower perimeter with a distance around the vertical central axis of the aperture, the distance around the upper perimeter of the upwardly inclined wall being less than the distance around the lower perimeter of the upwardly inclined wall, the upwardly inclined wall being inclined from the lower perimeter toward the upper perimeter, the upwardly inclined wall being made of a material, the bottom surface of the shoe in the heel region being made of a material different from the material of the upwardly inclined wall; and a non-ground-engaging member extending across and in contact with the upper perimeter of the upwardly inclined wall, the non-ground-engaging member having a lower surface that is visible from and in air communication with the outside of the shoe through the bottom surface of the shoe, the non-ground engaging member being made of a material different from the material of the ground-engaging portion of the bottom surface of the shoe below the heel region.