SNW Kid Baby Summer Hat Baby Sun Hat Hip Hop Hat Baseball Cap Kid Beach Cap Material: Cotton. Head circumference about 17.7 inches/45 cm.It fits for baby between 3-6 months. Please note: Hat circumference is equal to baby's head circumference plus 0.6 inches(1.5cm). 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.