The ornamental design for a sandal, as shown and described.
FIG. 1 is a perspective view of a element of a sandal, 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 elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a bottom view thereof; and,
FIG. 7 is a top plan view thereof.
The broken lines in FIGS. 1–8 are for illustrative purposes only and form no part of the claimed design. Surfaces not shown form no part of the claimed design.