Abstract: A removable cooling band structure attaches directly to a hatband portion of a desired hat to be cooled. The cooling band structure has a liquid retaining pad for abutting at least a portion of the forehead of the wearer. Associated with the band structure and pad is a fluid supply vessel which is cooperatively connected to the cooling band structure and transmits fluid such as water to the band structure through a wick by capillary action.

Abstract: An improved cooling hatband is comprised of a structural support band which is affixable to the desired headpiece. An absorbent flexible liquid retaining band is attachable to the support band with a net fastener. The absorbent band is provided with a matrix of indented slots through which air can pass to optimize evaporation. The structural band is provided with a corresponding intermeshing matrix of openings which register with the intermeshing openings of the absorbent band when the absorbent band is connected to the structural band by means of the net fastener, allowing air to freely circulate through the assembled hatband.