The ornamental design for a jacket, as shown and described.
The file of this patent contains at least one drawing/photographs executed in color. Copies of this patent with color drawing(s)/photograph(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a perspective view of a jacket showing our new design;
FIG. 2 is a front view thereof, shown in an alternate configuration of use;
FIG. 3 is a rear view thereof, shown in an alternate configuration of use;