Your child will be the official scariest kid on Halloween with The Monsters University Sulley Deluxe Kids Costume. This costume levels up the basic version with a fantastic detachable headpiece that wraps around your little one’s head, allowing for a cool, full head of fabulous blue hair with the unmistakable, lovable tuft on top and two knockout grey horns. The jumpsuit carries on with the cool blue hue with an icy blue tone tummy and purple polka dots sprinkled here and there. Truly Sully, along with the detachable tail. The entire costume is made of 100% polyester. It does not include the socks.