The ornamental design for a shirt, as shown and described.
FIG. 1 is a front elevational view of a shirt according to the present invention;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side elevational view thereof, shown with an unclaimed wearer; and,
FIG. 6 is a left side elevational view thereof, shown with an unclaimed wearer.
The broken lines showing the portions of the human form illustrate the design in use and form no part of the claim.
In FIGS. 1-6, the arrowhead including the letters “K” and “C”, shown on the sleeves of the shirt, is a registered trademark of Kansas City Chiefs Football Club, Inc.