Infant/Toddler DC Comics Supergirl Dress & Diaper Cover Set - 4 sizes Look! Up in the sky! What is that flying in the air? It's a bird. It's a plane. No, It's Supergirl! This Infant/Toddler Supergirl Dress and Diaper Cover Set and have your little one ready to fight for truth and justice! This item features a multi-colored dress with detachable red cape and diaper cover.