Material: Polyester Size: cap brim 3.5inch, cap diameter 15inch Hat Circumference: 22"-23" Suitable for the crowd: adults or older children Suitable scene: fishing, outdoor sports, cycling, exercise, running, mountain climbing and other occasions 1、 Ponytail Sun Hat: The back of the hat is designed with a ponytail hole, which provides many conveniences for ladies with long ponytails or buns. You can easily run the hair through the hole and away from the neck. For those who work outdoors or women who love the outdoors, no more restraints. The buttons on the sides of the bucket hat can change the style for more experience. 2、 Perfect Sun Hat: Women's Sun Protection UV Protection Hat features a fluffy wide brim and UPF 50+ sun protection that blocks 98% of harmful rays; 5" wide brim provides perfect shade for your face, neck and ears. Whether you're doing outdoor activities or working outside, this bucket hat will better protect you from sunburn. A must for summer. 3、 Breathable fabric: The women's ponytail sun hat is made of high-quality quick-drying polyester, which is skin-friendly, lightweight and breathable. The mesh layer greatly promotes air circulation and allows moisture and heat to easily escape these hats; the internal sweatband removes sweat from the eyes and face; keeping you cool and comfortable all summer long. 4、 One size fits best: A casual style summer sun hat with a comfortable fit. Cap Girth: 22"-23", Cap Height: 4", Adjustable elastic buckle on the back of the fishing cap to adjust the cap circumference to fit your head size. The freely adjustable chin strap provides a comfortable fit and effectively prevents the UV protection cap from blowing away from the wind. 5、 Functional & Practical: This wide-brimmed sun hat can be folded and packed, making it easy to carry in your luggage, purse or bag while still maintaining its shape. A great choice for everyday use and outdoor activities, especially fishing, beach, hiking, kayaking, camping, gardening, travel, swimming pool, safari, golf, etc.