The ornamental design for a shoe, as shown and described.
FIG. 1 is a front perspective view of a shoe showing my new design;
FIG. 2 is a side view thereof;
FIG. 3 is a rear perspective view thereof;
FIG. 4 is a front perspective view of a second embodiment of a shoe showing my new design;
FIG. 5 is a side view thereof; and,
FIG. 6 is a rear perspective view thereof.
The broken line immediately surrounding the photographic area defines the peripheral boundary of the claimed design and forms no part thereof. The broken lines showing the remainder of the shoe are for environmental purposes only and form no part of the claimed design.