Personalized Heart Belongs To Mommy Youth Long Sleeve T-Shirt. Youth Long Sleeve T-Shirt - White with a smiling teddy bear hugging a big heart with little red and pink hearts says MY HEART BELONGS TO MOMMY. Cute for Valentine's Day. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)