Personalized Big Brother Infant Romper. Big Brother! A cool T-Rex big brother dinosaur stomps around letting everyone know he's the king! Fun gift for any big bro. 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)