This Transformers t-shirt shows the Autobots logo, which includes robot parts. Some of the most popular Autobots include Optimus Prime, Bumblebee, Ironhide, and Grimlock. The Autobots were the honorable race from Cybertron, the protectors of the universe, and with the leadership of Optimus Prime, the most popular characters on television. The Autobots logo has been instantly recognizable since Transformers debuted in 1984.