FIG. 1 is a perspective view of a rubber sole for cross country ski shoe showing my new design;

FIG. 2 is a front elevational view of the sole with a fragmentary portion of the ski boot in place;

FIG. 3 is a rear elevational view of the sole with a fragmentary portion of the ski boot in place;

FIG. 4 is a bottom elevational view of the sole with a fragmentary portion of the ski boot in place;

FIG. 5 is a side elevational view taken on line 5--5 of FIG. 4; and,

FIG. 6 is a side elevational view taken on line 6--6 of FIG. 4.

The broken line showing of a ski boot is for illustrative purposes only and forms no part of the claimed design.