Personalized That's right! You're my best friend! Infant Romper. Show off your bestie with That's right! You're my best friend! Infant Romper - Raspberry, featuring Dog and Mouse from the children's book "Dog and Mouse" by Michelle Nelson-Schmidt. 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)