Sock
FIG. 1 is a right side elevational view of a sock showing our new design, the opposite side being a mirror image thereof; 
     FIG. 2 is a right side elevational view in extended condition; 
     FIG. 3 is a front elevational view of FIG. 1; and, 
     FIG. 4 is a front elevational view of FIG. 2.