The ornamental design for a drawstringsock, as shown and described.
FIG. 1 is a side view of a drawstring sock showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a front view thereof,
FIG. 5 is a bottom view thereof with the laces shown tied;
FIG. 6 is a rear view of the drawstring sock when worn; and,
FIG. 7 is a front perspective view of a drawstring sock when worn.
The broken lines shown are for illustrative purposes only and form no part of the claimed design.
The dash-dot-dash broken line showing of a leg and foot in in FIGS. 6 and 7 is included for the purpose of showing the enviroment in which the drawstring sock is used; and forms no part of the claimed design. The dashed lines on the surface of the drawstring sock shown in FIGS. 1-7, indicate stitching.