Personalized Oom-Pa Infant Romper. Oom-Pa tuba playing dad is a humorous music design. Fun gifts for low brass playing fathers and grandfathers at Father's Day, birthdays and holidays. 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)