The ornamental design for a shoe, as shown and described.
FIG. 1 is a front perspective view of a shoe showing my shoe design;
FIG. 2 is a left side view of the shoe shown in FIG. 1; and,
FIG. 3 is a right side view of the shoe shown in FIG. 1.
The broken line showing of the heel, heel cap, portion of the upper, portion of the front, buckle, and strap, and zipper is for illustrative purposes only and forms no part of the claimed design.