Footwear Sole

FIG. 1 is a perspective view of the footwear sole embodying the new design; FIG. 2 is a bottom view thereof; FIG. 3 is a top view thereof; FIG. 4 is a right side view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a front view thereof; FIG. 7 is a rear view thereof; FIG. 8 is an enlarged view thereof taken at circle 8 in FIG. 1 ; and, FIG. 9 is an enlarged view thereof taken at circle 9 in FIG. 1 . The broken lines show the boundary of the design and form no part of the claim.