Functional 6 panel cap made of Coolmax extreme Outer fabric: 100% Polyester Velcro fastener polyester Coolmax Lining ma... Functional 6 panel cap made of Coolmax extreme Outer fabric: 100% Polyester Velcro fastener polyester Coolmax Lining made of mesh Breathable and quick-drying Excellent moisture transport 6 embroidered ventilation holes 8 decorative stitching lines on the peak Padded sweat band made of Coolmax