Personalized 1st Christmas Together Twins Owls Youth Long Sleeve T-Shirt. Cute it's our 1st Christmas Youth Long Sleeve T-Shirt - White with matching holiday owls holding ornaments for a couples first Christmas together or twin boys or girls 1st Christmas holiday. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)