Coolibar UPF 50+ Men's Bondi Straw Beach Hat - Sun Protective Natural Fiber UPF 50+ - protects against 98% of UVA and UVB rays Approx. circumference: 22 5/8 inch (S/M) 23 5/8 inch (L/XL) 24 3/8 inch (XXL); 4 inch Brim Adjustable faux leather chin strap with wooden bead and rope crown band Moisture-wicking internal sweatband Spot clean; Imported