Personalized Future Ballerina Youth Long Sleeve T-Shirt. Future Ballerina Youth Long Sleeve T-Shirt - Royal Blue with girl dancer and rainbow design with hearts are a cute gift for a little girl who loves to dance Also makes a great shower gift for a baby girl youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)