The 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. The hat is designed with an embroidered (raised) team logo on front and stitched Major League Baseball logo on the rear with an interior that includes branded taping as well as a CoolBase moisture wicking black sweatband. Fitted closed back. Manufactured by New Era and officially licensed by Major League Baseball.