The ornamental design for a closure, as shown and described.
FIG. 1 is an isometric view taken from the upper front, and right side of a closure, and FIG. 1 shows our new design with the lid in a closed position as the lid would be initially positioned with the closure body for installation of the closure on a container (not shown);
FIG. 2 is a front elevational view thereof;
FIG. 3 is a right side elevational view thereof, the left side elevational view thereof being a mirror image;
FIG. 4 is a rear elevational view thereof; and,
FIG. 5 is a top plan view thereof.
In the drawings, the broken lines depict environmental subject matter only and form no part of the claimed design.
A top portion of the closure body below the closure lid is depicted with a contrast in surface shading relative to both the lower portion of the closure body and the closure lid, and such depiction represents a contrast in appearance via material, texture, or color so that the aesthetic appearance is enhanced.