The ZENKO men's baseball cap by IQ is made of synthetic materials that effectively wick away moisture. Mesh side panels help wick moisture away. The wide visor shields your eyes from the sun's rays. Adjustment at the back allows you to optimally fit the cap to your head circumference. Key features: One size fits all Mesh panels Rear adjustment Reflective elements Breathable Quick-drying Technical specifications: Material composition: 100% polyester