Personalized Motocross Dirt Biking BMX Infant Romper. Dirt bike rider with tire tracks and mud for kids who love motocross 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)