Coolibar UPF 50+ Baby Splashy Bucket Hat - Sun Protective Polyester/Spandex Blend UPF 50+ - protects against 98% of UVA and UVB rays Aqua SUNTECT&reg;: Chlorine and saltwater resistant with 4-way stretch; Travel friendly crushable construction Protective 2 3/4 inch brim shades eyes and face; Circumference: 18 1/2 inches (6-12 Month), 19 1/2 inches (12-24 Month), 20 inches (2T-3T) Chin strap with non-scratch Velcro secures hat without irritation and moisture-wicking internal soft terry sweatband; Cold rinse after use, Easy care: hand wash warm, line dry Recommended use for baby's splashy pool or beach days in and around the water