The product is a Ken Griffey Jr. #30 Cincinnati Reds Mitchell & Ness Authentic Batting Practice Jersey in size 4XL. Made of 100% polyester, it is officially licensed by Major League Baseball for the 2000 pre and post season. This black jersey is specifically designed for men who are fans of the Cincinnati Reds and Ken Griffey Jr. It is a high-quality piece of fan apparel that pays homage to the iconic player and team.