Sock

FIG. 1 is a right side rear perspective view of a sock showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side rear perspective view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a left side front perspective view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a right side front perspective view thereof; and,

FIG. 8 is a right side view thereof.

The broken lines immediately adjacent to the bottom of the shaded area define the bounds of the claimed design and form no part thereof. The unshaded broken line area within the shaded area forms no part of the claimed design. The broken lines depicting the remainder of the sock form no part of the claimed design.