This 80sTees.com exclusive Transformers t-shirt features an image of the leader of the Dinobots, Grimlock in robot mode. The artwork on this t-shirt shows Grimlock in an action pose in robot mode with his energo-sword. Grimlock transformed into a mechanical Tyrannosaurus. As the powerful leader of the Dinobots, Grimlock is one of the most popular characters in the Transformers franchise!