Personalized Sister Of The Groom (teal) wedding party Youth Long Sleeve T-Shirt. Pretty teal swirl wedding design says Sister Of The Groom on this bridal party Youth Long Sleeve T-Shirt - White for the rehearsal party, wedding activities, bridal shower and more. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)