This hat was designed to keep your head cool by dumping excess heat through special vents that allow hot air out, but are small enough that the sun's rays aren't an issue.. Features The Model 565BL Hi-Ride Belt Loop rides 1 higher than standard belt loops Designed for use on any Safariland 3-hole patterned holster; Men's white baseball cap, perfectly matching the shape of the head; Made of very light and thin, at the same time breathable ArmourVent material; The UA Siro headband is soft and delicate to the touch, it fits perfectly and does not compress; Specifications Color: White; Material: Polyester; Size: Large-Extra Large; Gender: Mens; .