The ornamental design for an undergarmentshield, as shown and described.
FIG. 1 is a top frontal perspective view of an undergarment shield, showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines shown in FIGS. 1-7 illustrate portions of the undergarment shield that form no part of the claimed design. The wavy broken lines appearing on the top and bottom surface of the undergarment shield as shown in FIGS. 1-3 depict unclaimed pleating, and the areas between such broken lines form no part of the claimed design. The dash-dot broken lines shown in FIGS. 1-3 illustrate boundary lines that form no part of the claimed design.