ONE SIZE UNISEX Casual style unisex sun hat snug and cosy fit Hat size available from 22 24 inches 57 61cm Rear adjustable elastic drawstring design one size fits most adults head size Features 1 High quality material nylon cloth knitted fabric EVA foam Durable breathable lightweight construction 2 Anti ultraviolet The wide brim protects the head from UV rays and uses UV resistant sunscreen fabrics making it difficult for sunlight to penetrate the fabric keeping it cool and avoiding sun exposure in the hat 3 Cooler There is a water activated evaporative cooling lining Special materials make you feel cooler and more comfortable than wearing other hats 4 Wide hat design wide side can effectively block the sun on the face and neck 5 Adjustable windproof rope Outdoor activities don t have to worry about being blown away the buttons can be adjusted freely and the suitable head circumference makes the wearing more comfortable Descriptions 1 Evaporative cooling The liner retains cold water and slowly evaporates to keep your head cool 2 Simple usage Just wet the liner and put on the hat Immediately relieve the heat and keep it cool for hours Package Included 1 x Ice cap