Sock

FIG. 1 is a first perspective view of a first embodiment of a sock. FIG. 2 is a second perspective view of the sock of FIG. 1 . FIG. 3 is front view of the sock of FIG. 1 . FIG. 4 is a right view of the sock of FIG. 1 . FIG. 5 is a top view of the sock of FIG. 1 . FIG. 6 is a bottom view of the sock of FIG. 1 . FIG. 7 is a first perspective view of a second embodiment of the sock. FIG. 8 is a second perspective view of the sock of FIG. 7 . FIG. 9 is front view of the sock of FIG. 7 . FIG. 10 is a right view of the sock of FIG. 7 . FIG. 11 is a top view of the sock of FIG. 7 ; and, FIG. 12 is a bottom view of the sock of FIG. 7 . The hatching of the first embodiment of the sock indicates a contrasting color or material relative to the remainder of the sock. The broken lines define the bounds of the claimed design and form no part thereof.