FIG. 1 is an elevational view of one side of a heel insert for a shoe sole showing my new design;

FIG. 2 is an elevational view of the other side thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a cross-sectional view taken along line 5--5 of FIG. 1;

FIG. 6 is a cross sectional view taken along line 6--6 of FIG. 1;

FIG. 7 is an elevational view of one side of a second embodiment of a heel insert for a shoe sole showing my new design;

FIG. 8 is an elevational view of the other side of the second embodiment;

FIG. 9 is a top plan view of the second embodiment;

FIG. 10 is a rear elevational view of the second embodiment;

FIG. 11 is a cross sectional view taken along line 11--11 of FIG. 7;

FIG. 12 is a cross sectional view taken along line 12--12 of FIG. 7;

FIG. 13 is an elevational view of one side of a third embodiment of a heel insert for a shoe sole showing my new design;

FIG. 14 is an elevational view of the other side of the third embodiment;

FIG. 15 is a top plan view of the third embodiment;

FIG. 16 is a rear elevational view of the third embodiment;

FIG. 17 is a cross sectional view taken through line 17--17 of FIG. 13; and,

FIG. 18 is a cross-sectional view taken through line 18--18 of FIG. 13.

The broken lines showing the remaining portions of the sole and shoe upper in FIGS. 1-18 form no part of the claimed design.