Sole for shoe or sandal has upstanding lugs for connection to shoe upper or straps for sandal, and has lug under heel region to engage in groove in heel

摘要

The sole is of the usual shape as seen in plan view, matching the shape of the wearer's foot. There are two pairs of lugs projecting upwards from the edges of the sole. The first pair of lugs is at the broadest part of the sole by the base of the toes, and the second pair is just forward of the heel. There is a large rectangular lug centrally-placed on the underside of the heel. The sole has a slight sinusoidal curve as seen from the side.