The ornamental design of a belt, as shown and described.
FIG. 1 is a perspective view of a belt, showing my new design;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a cross-sectional view thereof, viewed along line 5-5 of FIG. 7;
FIG. 6 is a rear elevational view thereof; and,
FIG. 7 is a right side view thereof, the left side view is a mirror image.
The break lines shown in FIGS. 1-3 and 7 symbolize breaks in the length of the article in which the claimed design is embodied. The appearance of any portion of the article between the break lines forms no part of the claimed design.