This Bo Jackson trainer shirt is a classic to match your pair or to wear as a fan. The Bo Jackson trainer shirt portrays One of the greatest athletes in sports history and one of the greatest 2-sport athletes ever Bo Jackson is an idol to many. Depending on your age, many of us had the black and white poster of young, shirtless Bo Jackson wearing shoulder pads and resting a Louisville Slugger on his shoulders. Not to mention the Score trading card. With this design we dug deep into childhood.