Material: dacron Size:12*7cm/4.72*2.75inches,54-60cm/21.26-23.62inch Color:as picture 1. The adjustable baseball cap is adjustable with different head circumferences, making the cap fit more closely to the head without being too loose or too tight, providing a more comfortable wearing experience. 2. The opening at the back of the hat allows women to pass their ponytail through the middle of the hat, avoiding the constriction and discomfort caused by holding the ponytail in place during exercise or travel. 3.The mesh material of the hat has good breathability, allowing the head to remain dry and reduce the evaporation of sweat, avoiding excessive sweating and odour problems on the head. 4. The duck tongue design of the hat can provide better shading effect, preventing direct sunlight to the face and avoiding skin damage, while the duck tongue design can also add a sense of age-defying cuteness for women. 5. The hat is not only suitable for sports occasions, but also for everyday wear, creating a fashionable and casual image for women, making it a very practical and versatile hat. NOTE 1. As we all know ,the different computers display colors differently,the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size ,you can feel free to contact mewe will give you some suggestion,but it is for you reference only. Package include: 1 pcs* Sunscreen cap