● Button closure ● ONE SIZE FITS MOST: Casual style sun hat, snug and cosy fit. Hat Circumference: 21 -23 inch, Hat Height: 4.33 inch, Brim Length: 3.35 inch, Chin Drawstring Length: 12.99 inch. One size is suitable for most women. ● FUNCTIONAL AND VERSATILE: The brim is large enough to shade forehead. Inside of sun hat is a breathable mesh layer, which can greatly improve cooling, comfortable and airflow. Especially, a ponytail opening in back is considerate design for women. The buttons on both sides of bucket hat can give you more different styles. ● MATERIAL: This fashion fishing sun cap is made of quick-drying, breathable polyester. UPF provide you better protection from sunshine and damaging rays for face and neck. ● ADJUSTABLE DRAWSTRING: Adjustable chin drawstring for fixing the sun hats, especially in windy days. And another drawstring behind the safari hat is for adjusting the hat circumference to make it most suitable. ● EASY STORAGE: Rolled up convenient to carry and absolutely save lots of space. It is a perfect womens sun hat for beach, fishing, pool, park, hiking, camping, travel, hunting, gardening or any outdoor sports and activities.