Tread Design for Socks

FIG. 1 is a perspective view of a tread design for socks showing my new design.

FIG. 2 is a bottom plan view thereof; and,

FIG. 3 is a top plan view of the tube sock of FIG. 1 .

The portions of the drawings shown in broken lines illustrate portions of the sock and/or design that form no part of the claimed design. The text shown in broken lines in the drawings illustrate portions of the design that form no part of the claimed design.