FIG. 1 is a rear perspective view of a portion of a shoe sole showing a new design;

FIG. 2 is a front perspective view of the portion of a shoe sole of FIG. 1;

FIG. 3 is a side elevational view of the portion of a shoe sole of FIG. 1; and,

FIG. 4 is a rear elevational view of the portion of a shoe sole of FIG. 1.

Please note that the Figures include broken, solid and dash-dot-dash lines. The area within the solid and dash-dot-dash lines forms the claimed design. The area within the broken lines is environmental. Color contrast and texture form no part of the claimed design in any of the Figures.