Bottle cap

FIG. 1 is a perspective view of the bottle cap showing our new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines and areas adjacent to shaded areas depict portions of the bottle cap that form no part of the claimed design. Other broken lines illustrating a bottle depict environmental subject matter that forms no part of the claimed design.