Personalized Gym Teacher Sneakers Infant Romper. Gym Teacher with the word Gym wearing sneakers is a humorous design to make your favorite gym teacher smile on birthdays, holidays, graduations and back to school. 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)