The ornamental design for a trousers, as shown and described.
FIG. 1 is a front elevational view of trousers showing my new design;
FIG. 2 is a rear view thereof; and,
FIG. 3 is a perspective view thereof, the opposite side being a substantial
mirror image, and the broken lines partially showing a human form being
for illustrative purposes only and forming no part of the claimed design.
The broken lines shown on the trousers throughout the views are understood
to represent conventional stitching.