100% Cotton Drawstring closure Machine Wash [Wide Brimmed and Clear Shield Hat]: The baby sun hat featuring a wraparound brim and a clear shield, protecting your little kid's hair, eyes, and skin from the sun's ultraviolet (UV) rays, and prevent droplets to touch your kids [Premium Material]: The infant hat is made from premium cotton, skin-friendly, no harsh chemicals, comfort and breathable, fit for baby summer beach hat; soft cotton material, care for infant baby’s sensitive skin [Adjustable Chin Strap]: Stay-put tie chin strap to help keep the hat on when it’s windy. Your baby will enjoy their outdoor playing time because the cap does not fall off or cover the baby's eyes [Baby Hat]: Adorable toddler kids' hats can be worn on almost any occasion, regardless of whether they are going to the beach, on the boat, or simply going out on a summer day Kids sun hat size: 3 Months-6 Months, hat size: 18.11 inches; 6 Months-12 Months, hat size: 18.89inches; 12 Months-24 Months, hat size：19.68 inches. 2T-4T, hat size:20.47 inches. Baby hat size is only for reference, please according to your baby's head circumference