FIG. 1 is a perspective view of the footwear sole embodying my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

FIGS. 1-6 show portions of a shoe upper in broken lines. The upper is shown for environmental purposes and does not form any part of the claimed design. The broken lines following the upper contour of the shoe sole, in FIGS. 1, 3, & 4-6 define the boundary of the claimed design. The broken lines form no part of the claim.