[UNIVERAL SIZE]: One size fits most women. Hat circumference: 21-23, hat height: 4.33 inches, edge length: 3.35 inches, chin drawstring length: 12.99 inches. [PONYTAIL HAT MATERIAL]:This fashion fishing sun cap is made of quick-drying, breathable polyester. : 60% Polyester Cotton 40% Polyester [UPF30 + UV protection] wide-brimmed hat design to effectively block the bright summer sun.The edge is enough to cover the forehead. The buttons on the sides of the hat give you more different styles. [Excellent details] The interior of the hat is a breathable mesh layer that greatly improves cooling, comfort and airflow. The rear ponytail opening is a feminine thoughtful design. Adjustable lower bala rope for fixing the sun hat, especially on windy days [EASY STORAGE]: It is easy to carry and easy to carry. Perfect hat for beach, fishing, swimming pool, park, hiking, camping, tourism, hunting, gardening or any outdoor sports and activities.