Mission Cooling Visor 80% Polyester/20% Nylon Features instant cooling technology in the sweatband of the visor Chemical-free cooling; provides UPF 50 protection from the sun Ultra-wicking fabric pulls sweat from the body and encourages quick drying Stays cool for hours when it's wet and feels soft to the touch when it's dry Activate the technology by wetting the hat before wear; soak in water and wave in the air for instant cooling