The ornamental design for a sandal, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
1.1 is a front perspective view of the sandal showing my new design;
1.2 is a front view thereof
1.3 is a rear view thereof;
1.4 is a right side view thereof;
1.5 is a left side view thereof;
1.6 is a top view thereof; and
1.7 is a bottom view thereof.
The broken lines depicting portions of the shoe sole show portions of the sandal that form no part of the claimed design.