FIG. 1 is a front view of a vest showing my new ornamental design;
FIG. 2 is a rear view of the vest shown in FIG. 1;
FIG. 3 is a perspective right side view of the vest shown in FIG. 1;
FIG. 4 is a perspective left side view of the vest shown in FIG. 1;
FIG. 5 is a top view of the vest shown in FIG. 1; and,
FIG. 6 is a bottom view of the vest shown in FIG. 1.
The broken lines are for illustrative purposes only and form no part of the claimed design.