Water Bottle Cap

FIG. 1 is a top perspective view of my new design for a water bottle cap, shown in an open configuration;

FIG. 2 is a bottom perspective view of my new design for a water bottle cap shown in a closed configuration;

FIG. 3 is a front elevation view of my new design for a water bottle cap shown in an open configuration;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

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