Water Bottle Cap

FIG. 1 is a front, right side perspective view of a water bottle cap, showing my new design;

FIG. 2 is a front, left side perspective view thereof;

FIG. 3 is a front, top perspective view thereof;

FIG. 4 is another front, bottom perspective view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a right side elevational view thereof;

FIG. 9 is a top plan view thereof; and,

FIG. 10 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the water bottle cap that form no part of the claimed design.