Personalized Santa I Can Explain, Trees, Stars, Christmas, Xmas Youth Long Sleeve T-Shirt. Cute, fun and adorable design with Christmas tree, stars and text 'Santa, I can explain'. Modern and trendy gift, perfect for the Christmas lover in your life. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)