Personalized Rocket Ship 3rd Birthday Youth Long Sleeve T-Shirt. Cute rocket spaceship 3rd birthday Youth Long Sleeve T-Shirt - White with bright red rocket spaceship surrounded by blue sky, stars and planets. Big number 3 in the porthole. For future astronauts and space explorers. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)