Product DetailsMaterial: Cotton, polyester and elastodiene Ribbed fabric Dimensions/Size:Head circumference: 45cm (relaxed) Head circumference: 66cm (stretched) Crown: 22cm (H) x 19.5cm (W) Rib band: 7.5cm (H) Internal dart: 9cm (L) (front) FeaturesTurn up ribbed brim Additional InformationCare instructions: Hand wash according to instructions on the care label