Coolibar UPF 50+ Baby Cotton Cap - Sun Protective 100% Cotton UPF 50+ - protects against 98% of UVA and UVB rays Approx. circumference: 18 1/2 inch (6-12M), 19 1/2 inch (12-24M), 20 inch (2-3T); 2 3/4 inch Brim Travel friendly crushable construction Velcro chin strap and moisture-wicking sweatband Easy care: hand wash, line dry; Imported