Hat Cooling Insert

FIG. 1 is a perspective view of a hat cooling insert within an environment of use inside a cap;

FIG. 2 is a front view of hat cooling insert;

FIG. 3 is a back view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The cross-hatched lines in the drawings show shading that defines the contours of the hat cooling insert and do not reflect a particular surface ornamentation or material.