FIG. 1 is a perspective view of a footwear outsole showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in FIGS. 3 and 6 are provided only to indicate the boundary of the claimed design. The broken lines and the area lying within them form no part of the claimed design.