Armycrew UPF 50+ Performance Sleek Water Resistant Cool Dry Sun Visor Cap. 94% Polyester , 6% Polyurethane. Made with our Thermotrol Technology, this visor is combined with cool and dry properties. Thermotrol Technology; Breathability, UV Control, Stretchability, Cooling, Moisture Control, Easy Care, Lightweight. UPF 50+ sun protective performance visor cap perfect for atheletes, Water resistant material, Fitted with an inner elastic sweatband. Finished with an adjustable hook and loop closure. One size fits most, fitting up to XL.