Personalized Wavy Math Counts Infant Romper. Math in wavy text and the only subject that counts is a humorous math design with a double meaning is a fun design for mathematicians, students and teachers. 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)