CLASSIC LOOK GETS AN UPDATE. The Nike AeroBill Legacy91 Women's Golf Hat is powered by Nike AeroBill technology to help keep you comfortable and cool. Its soft, flannel fabric puts a stylish spin on a classic silhouette. - Nike AeroBill technology provides lightweight comfort. - Flannel fabric has a soft feel. - Soft snapback closure provides a customizable fit. - Terry sweatband is soft and absorbent. - "Golf" and the Swoosh design trademark are embroidered on the front. - 51% WOOL / 49% RAYON