DC Comics Infant Sized Batman Romper Costume. Show Off Your Parenting Skills and Sense of Style with the One and Only Batman Romper. It's the Perfect Way to Get Your Little Crimefighter Fully Outfitted With a Cape Accessory and a Signature Batman Logo Emblazoned on the Chest! Your little one will be ready to fight crime in style with this iconic look. After all, Batman never met a challenge he couldn't handle! Whether you're at home or on the go, you'll have the confidence that your mini-superhero is ready to take on the world in signature Batman fashion.