Personalized Life Better Triathlete Infant Romper. Triathlon athlete Infant Romper - Black or the competitor in your life who enjoys biking, swimming and running says Life Is Always Better When I Tri. Perfect for that next competition. 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)