LIGHTWEIGHT, BREATHABLE COMFORT. Unisex Nike AeroBill Golf Hat is made with sweat-wicking Nike AeroBill technology for lightweight, breathable comfort. - Nike AeroBill technology combines lightweight construction with sweat-wicking fabric. - Laser perforated side panels enhance ventilation. - Soft snapback closure for a comfortable, secure fit. - Embroidered eyelets help enhance breathability. - Raised silicone Swoosh design trademark is featured on the front. - "Just Do It." is featured on the sweatband. - 60% NYLON, 40% POLYESTER