Personalized Super Unicorn Youth Long Sleeve T-Shirt. Super Unicorn! A cute unicorn with a rainbow mane and tail wearing a red mask and cape stands up in the clouds ready to take on evil doers in an adorable way. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)