Hereís a monster costume that your little one will stick by. Itís the amazing So So Happy Puff Monster Costume. Puff monster has the ability to make anything invisible, but your child wonít be able to hide how cute they are when they wear this fantastic Halloween Costume. This costume is officially licensed by So So Happy, an organization that celebrates individuality, quirkiness and supports anti-bullying efforts. This costume includes the body suit and pants. Available in child sizes 3-4t and 4-6x.