This Authentic Collection 59FIFTY® is the official on-field cap of Major League Baseball® and is worn by every Major League Baseball® player. Performance is enhanced through CoolBase technology featuring revolutionary wicking, superior drying, and shrink resistance. Designed with an embroidered (raised) Washington Nationals team logo on front and stitched Major League Baseball® logo on the rear. Interior includes branded taping as well as a CoolBase moisture wicking black sweatband. Fitted, closed back.