Mizuno Cooling Inner Wet and Layerable Hat for Heatwave Junior Free Size Cap, Cool, Protection, C2JWC101, Junior, Black,

Soak it in water for a cool, refreshing feel! The cool hold function is built into the bottle cap inside the hat. An inner cap with a flap that can be worn inside your regular hat The hanging part is made of cool, smooth material with UV protection and a cooling sensation.