Personalized Our First Christmas Twins Elf Outfit Infant Romper. Celebrate baby's 1st Christmas with this adorable elf design for your twin boys or twin girls. Meet your new favorite outfit! Keep dressing simple with this one piece, lap shoulder t-romper. Super soft and perfect for baby's sensitive skin. 5.5 oz. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40; Heather is 90/10 combed ringspun cotton/polyester)