Personalized First St Patricks Day Irish Truck Youth Long Sleeve T-Shirt. Irish construction truck with shamrock clover and it's my 1st St Patricks Day slogan on a Youth Long Sleeve T-Shirt - Royal Blue. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)