Keep little noggins protected from the sun with this darling hat from Speedo. ; Comfortable, lightweight design. ; Adjustable chin strap. ; UV 50+ Block the Burn protects against the sun's harmful UVA and UVB rays. ; 83% nylon, 17% Spandex. ; Imported. Measurements: ; Circumference: 20 1 2 in ; Brim: 1 3 4 in ; Product measurements were taken using size LG/XL. measurements may vary by size.