Personalized Bob is a Unicorn Women's Plus Size T-Shirt. Bob is, indeed, a unicorn. He just needs to believe it, and he can be it. Bob is a Unicorn Women's Plus Size T-Shirt - White, from the children's book "Bob is a Unicorn" by Michelle Nelson-Schmidt. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)