The topless sun hat is made from cotton fabric. Adjustable HOOk&LOOP strap on back. It could play the effect of shade when you go out at summer. There is no top of the hat so it is breathable and cool. Perfect for outdoor activities. The topless hat is designed for ventilation to accelerate the evaporation of sweat during outdoor activities such as fishing, climbing, hiking, running, boating, etc. quick-drying and breathable, through the use of ultra-light and moisture-wicking quick-drying. it can be folded into a small volume and carried anywhere without taking up too much space. it is an ideal companion for your active lifestyle. Quantity over 3000pcs bases on ocean shipping way, email us get the newest info, let’s start the business today!