The ornamental design for a shirt, as shown and described.
This application is one of two design patent applications filed this same date, both being different inventions relating to a shirt.
FIG. 1 is a front elevation view of a shirt of the present invention;
FIG. 2 is a front exploded view thereof; and,
FIG. 3 is a rear exploded view thereof.
The broken lines shown in FIGS. 1, 2 and 3 are for the purpose of illustrating portions of the shirt and a pattern of an attachment thereto, but form no part of the claimed design.