The Nike Air Jordan 9 Retro 'Barons' commemorates Michael Jordan's short stint in minor league baseball with the Birmingham Barons. The white . black . and Wolf Grey colorway features pinstripe detailing on the heel collar . a 3M heel tab . and Jordan's baseball jersey #45 at the heel. Released in April 2014 . the 'Barons' pack also included the Air Jordan 1 Retro High OG 'Barons.'