This Transformers t-shirt is designed to look just like the torso of Grimlock in robot mode. Grimlock is the leader of the Dinobots, and one of the most fearsome and powerful Autobots of all time. When Grimlock is in robot mode, he battles the Decepticons with his energon sword. Grimlock is just as dangerous when he transforms into a Mechanical Tyrannosaurus. For any fan of the leader of the Dinobots, this Transformers Grimlock Costume T-Shirt is a must have!