Coolibar UPF 50+ Baby Sun Bucket Hat - Sun Protective Polyester/Spandex blend Pull On closure UPF 50+ - protects against 98% of UVA and UVB rays Multi-panel construction and chin strap with non-scratch Velcro for safe, secure fit; Chlorine and saltwater resistant with 4-way stretch Separate front and back brim provides full coverage and snapped front brim can be worn up or down Approx. Circumference: (6-12M) 18 1/2 inches, (12-24M) 19 1/2 inches, (2-3T) 20 inches; Brim: 2 3/4 inches; Hand wash; Imported Recommended for baby's everyday fun and games out in the sun