Personalized 1st Birthday Elephant 1 Year Old Youth Long Sleeve T-Shirt. Happy first birthday cute baby girl party elephant Youth Long Sleeve T-Shirt - Royal Blue for a child turning one Baby's 1st birthday party apparel youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)