Coolibar UPF 50+ Men's Packable Travel Fedora - Sun Protective 100% Polyester UPF 50+ - protects against 98% of UVA and UVB rays Packable construction with moisture wicking internal sweatband, woven exterior crown band, and eyelets on sides of crown for additional air flow Approximate circumference: 22 3/8 inch (Medium), 23 inch (Large), 23 3/4 inch (X-Large), 24 inch (XX-Large) Brim: 2 5/8 inch Spot Clean; Imported