NikeCourt AeroBill RF Heritage86 Unisex Hat pairs sweat-wicking technology with a classic cap silhouette to help you stay dry and comfortable. An embroidered patch on the crown features the initials of Roger Federer. Dri-FIT technology helps keep you dry and comfortable. Terry sweatband is soft and absorbent. Adjustable closure provides a customizable fit. "RF" patch is embroidered on the left side of the crown. Embroidered eyelets help enhance ventilation.