Coolibar UPF 50+ Kids' Surfs Up Bucket Hat - Sun Protective 100% Polyester UPF 50+ - protects against 98% of UVA and UVB rays Aqua SUNTECT&reg; fabric with superior chlorine and saltwater resistance and travel friendly crushable construction Velcro tab for adjusting size of crown; Circumference - S/M (4-8) 21 inches; L/XL (10-12) 22 inches Protective 2 1/2 inch (S/M) or 2 3/4 inch (L/XL) brim shades eyes and face; Cold rinse after use, Easy care: hand wash warm, line dry; Imported Recommended UPF 50+ sun protection for all kids who are ready to splash in the water