【Adjustable and Gender Fit】: Each hat is equipped with adjustable metal closure. So our washable hats can be adjusted to suit many sizes to suit most different head shapes. The unique and adjustable design makes the hats suitable for both sexes. Material composition: 100% cotton 【Good ventilation and comfortable】: Made of fast-drying polyester fabric, featuring softness and lightness, good ventilation, not easy to break, anti-static electricity, not fade, wear resistance 【Can be used in various places】Excellent choice for daily activities and outdoor activities, especially forest hiking, fishing, running, hiking, baseball, cycling, golf and tennis and so on. Product industry: The production process of this product is simple, robust and durable Adjustable design: Adjustable, comfortable and fast head cap design