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 right side view of the shoe shown in FIG. 1;
FIG. 3 is a left side view of the shoe shown in FIG. 1; and,
FIG. 4 is a top view of the shoe shown in FIG. 1.
The broken line showing of the sole, heel, buckle, buckle, holes on the strap, and portion of the upper is for illustrative purposes only and forms no part of the claimed design.