The EyeOuts UPF 50+ Microfiber Hat Features: * Microfiber Fabric - for light weight, UPF 50+ sun protection and it is water repellent * Hydrotec Moisture Wicking Fabric - four inserts at the top for heat release and minimizing sweat * Hydrotec lining - to avoid side head preasure * One Sided Strap with elastic strap - for sizing multiple users * Plastic Visor Body - for those who like to go boating or doing water sports * This Hat Floats!