SNW Kid Baby Summer Hat Baby Sun Hat Hip Hop Hat Baseball Cap Baby Cap Materials : Cotton Hat circumference about 16.9 in(43cm). It is fit for babies 3-6 months.About 18.1 in(46cm). For babies 6-12 months.About 18.9 in(48cm). For babies 12-24 months.About 19.7 in(50cm). For babies 2-3 years old. About 20.5 in(52cm). For babies 3-4 years old.About 20.9 in(53cm). For babies 5-7 years old.About 21.3-21.7in/54-55cm. For babies 8-10 years old Please note: the age is only for reference,you can choose it according to your baby's head circumference. The cute hat is the perfect companion for those days. She is cuddly-soft lining and the pretty pattern makes it a great design. Therefore, you can wear the hat on those sunny days and will always be in style. Of course, it serves the purpose of sun protection. For everyday use, beach, fishing, hiking and so on.