Megatron and the Decepticons are at it again, and only Optimus Prime can stop them. Our Children's Optimus Prime Transformers 3 Muscle Costume is perfect for portraying this noble leader of the Autobots on Halloween or during playtime. Put the enclosed mask and jumpsuit on, and you'll be ready to "roll out" in style. Blue and red prints decorate the muscular suit and look like the metallic parts of a car. Red flame designs appear along the shoulders and torso to resemble the flame decals on Optimus Prime when he's in truck form. The blue and silver mask will make your transformation into this character complete. The Decepticons are determined to defeat all of the Autobots so that they can maintain their power over Cybertron. Help stop them by putting on our Optimus Prime costume for boys.