The ornamental design for a shoe, as shown and described.
FIG. 1 is a side view of a shoe showing my new design;
FIG. 2 is a front perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is an opposite side front perspective view thereof;
FIG. 5 is an opposite side view thereof; and,
FIG. 6 is a top view thereof.
The broken line showing of the rectangular shaped element and the unshaded area therein depict portions of the shoe that form no part of the claimed design. The broken lines depicting the zipper pull and the remainder of the shoe form no part of the claimed design.