Personalized St Patricks Day Irish Teddy Bear Shamrock Youth Long Sleeve T-Shirt. St Patrick's Day holiday bear Youth Long Sleeve T-Shirt - Vintage Black with green top hat and shamrock clover for boys or girls. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)