Product Details: Fabric: 100% Nylon, Mesh: 100% Polyester. Size: one size adjustable: 57-60cm, suitable for size range 7 1/8-7 2/5, 12cm extra wide brim, net weight: about 200g (very light), ultraviolet protection factor (UPF): >50. Other Features: Windproof, Waterproof, Quick Dry, Breathable, Removable. Sun Protection and Water Resistant - Maximum UPF 50+ protection keeps the sun from hitting your face and neck and provides great protection from harmful UVA and UVB rays. Enjoy the great outdoors with this waterproof, windproof and breathable hat. COMFORTABLE AND BREATHABLE: The adjustable chin cord keeps the hat in place even in windy or rainy conditions. The foldable side snap design allows you to freely switch between denim and casual styles on different occasions. The top of the hat is removable and has a mesh layer to keep your head cool and breathable. Includes an inner sweatband that absorbs sweat, which you might find uncomfortable at first. When you get used to it, you will love it. Foldable and Lightweight: The hat can be folded in half, easy to wear and save a lot of space. Packing Tips: The brim is folded and put into the bag for logistics, it will not affect your daily use, the shape of the brim will recover after a period of time. Great choice for daily use and outdoor activities, especially for walking in the woods, fishing, hunting, camping and outdoor research.