I claim the ornamental design for a toe cap for shoe, as shown.
FIG. 1 is a perspective view of a shoe having a toe cap embodying the new design;
FIG. 2 is a left side elevational view of the shoe of FIG. 1;
FIG. 3 is a right side elevational view of the shoe of FIG. 1;
FIG. 4 is a front elevational view of the shoe of FIG. 1;
FIG. 5 is a back elevational view of the shoe of FIG. 1; and,
FIG. 6 is a top plan view of the shoe of FIG. 1.
The broken lines immediately adjacent the claimed subject matter represent the bounds of the claimed design while all other broken lines are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design.