Spring / Summer Cotton Unisex Kid Baby Outdoor Sun Protection Bucket Cap Hat 100% Brand New and High Quality of Baby's Hat Materal: Cotton Head circumference about 18.1in-19.7in(46cm-50cm), for baby between 1-3 years old. Please note: the age is only for reference,you can choose it according to your baby's head circumference. Thickness moderate, moderate softness, good ventilation