Personalized Luckiest Grandma Ever St Patricks Irish Youth Long Sleeve T-Shirt. Cute luckiest Grandma Ever Youth Long Sleeve T-Shirt - Royal Blue with lucky green four leaf clover for grandmother on St Patricks Day. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)