Buckle closure Hand Wash Only Premium Sun Protection: The brim length of this baseball cap is just right. The special lengthened design (a little longer than ordinary hats) can not only effectively block UV rays, but also will not block the sight at all. The long sun hat is perfect for everyday use and outdoor activities can be worn all year round. Size Adjustable: Inside sweatband of the long cap is very soft and cozy. The adjustable metal buckle back closure makes you can easily lengthen or shorten the back strap to fit your head girth better and offer you a custom fit. The hat is suitable for people with head circumference: 22-24 inches (56-60cm), it makes size fits most people. Comfortable and Breathable: The baseball cap is detailed and ed with high quality fabric. It is durable and is not easy to deform. The six embroidered ventilation eyelets improve breathability, so you wont feel stuffy and sweaty even after long wearing. Highly recommended if you want a hat that keeps your head cool and comfortable all day