Perfect hat for the infant to toddlers. Made of 100% Polyester. Stiff and Flatbill. Mid profile. Structured crown. Mesh Back for easy cool off. Fitted with an inner hat band. Adjustable plastic snap closure. One size fits most infant to toddlers. This hat measures to Fitted Hat size 6, Circumference of 20 in (50 cm), Crown is 4 inches deep and the bill measures 2.25 inches long.