On September 17th, 1984 the world was introduced to Optimus Prime. This 80sTees.com exclusive Transformers t-shirt features an image of the leader of the Autobots posing next to the number 84. Optimus Prime is the courageous leader of the Autobots. When Prime isn't battling the Decepticons in robot mode, he is more than meets the eye when he transforms into a heavy-duty cab-over truck. In either form, Optimus Prime is fighting to save the galaxy!