Personalized St Patricks Proud To Be Irish Youth Long Sleeve T-Shirt. Proud to be Irish St Paddys Day celebration Youth Long Sleeve T-Shirt - Royal Blue gear with shamrock clover, horse shoe, Irish hat and fun arrows. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)