New Era 59Fifty MLB Pittsburgh Pirates Game On Field Fitted Hat 100% Polyester For the first time in over 50 years, the on-field caps have been altered to improve performance Moisture management takes moisture away from the skin into the fabric, keeping you cool and dry Two-component performance sweatband include a performance foam and moisture-wicking material Performance undervisor is made of black performance fabric to reduce glare Great hat for the Pittsburgh Pirates Fan