FIG. 1 is a side elevational view of an element of a shoe sole showing my new design;

FIG. 2 is a side elevational view of the other side thereof; and,

FIG. 3 is a rear elevational view thereof.

The broken line showing of the remaining portion of a shoe sole and a shoe upper in FIGS. 1-3 is for illustrative purposes only and forms no part of the claimed design.