MATERIAL: Made of polyester fiber. This material is very soft and comfortable, breathable, cool, lightweight and durable, and can be worn all day.SIZE: An adjustable size fits most women, and there are 5 colors to choose from. Just choose the color you like..EXTENDABLE ON BOTH SIDES: The brim of the hat can be stretched to both sides, and the wide and short sides can be adjusted freely, which can shield most of the ultraviolet rays and protect your face from harmful ultraviolet rays..OCCASION: It is very suitable for travel, sports, walking, going out, beaches, vacations and outdoor activities..WARM CUSTOMER SERVICE: 100% quality and customer satisfaction guarantee. TOTALLY RISK FREE. Buy with confidence now.