Coolibar UPF 50+ Kids' Marine All Sport Hat - Sun Protective 100% Polyester UPF 50+ - protects against 98% of UVA and UVB rays Breathable, quick-drying lite SUNTECT&reg; polyester fabric Extra-long 3 inch shapeable visor for superior eye and face coverage; Circumference (S/M) 20 7/8 inches (L/XL) 22 inches Hidden elastic draw cord for custom sizing; Internal terry headband for comfort Hand wash; Imported