Do you have a brave, strong little Autobot? He'll love flexing his muscles in this Transformers 3 Dark of the Moon Movie - Optimus Prime Muscle Toddler / Child Costume. Includes a muscle-bound jumpsuit and soft character headpiece. 2-piece set. Polyester. Hand wash. Imported. Does not include socks. This is an officially licensed Transformers 3 Dark of the Moon product.