Personalized 5th Birthday Football Sports Boys Infant Romper. 5th Birthday Infant Romper - White has big football sports ball with number 5 and being five is a ball slogan for boys who love football. 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)