Personalized Saint Patrick's Day, Luck Of The Irish, Clovers Youth Long Sleeve T-Shirt. Cute, fun and adorable design with leprechaun hat, clovers and text 'May the luck of the Irish be with you'. Modern and trendy gift, perfect for Saint Patrick's Day. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)