Personalized Bob is a Unicorn Infant Romper. Bob is, indeed, a unicorn. He just needs to believe it, and he can be it. Bob is a Unicorn Infant Romper - Natural, from the children's book "Bob is a Unicorn" 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)