Personalized Dirt Biking Motocross Racing Infant Romper. Dirt is for racing asphalt is for getting there funny dirt biking design for someone who enjoys racing offroad. 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)