FIG. 1 is a perspective view, from the front end and right side, of a sole for footwear, showing our new design;

FIG. 2 is right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a bottom view thereof;

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

FIG. 6 is a rear end view thereof.

The broken lines shown in FIGS. 1-6 are for illustrative purposes only and form no part of the claimed design.