FIG. 1 is a perspective view of a cooler showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a perspective view of a second embodiment of a cooler showing my new design;
FIG. 8 is a front view thereof;
FIG. 9 is a right side view thereof;
FIG. 10 is a left side view thereof;
FIG. 11 is a rear view thereof; and,
FIG. 12 is a top plan view thereof.
The broken line showing of FIGS. 1-12 is for the purpose of illustrating portions of the cooler and forms no part of the claimed design.