Personalized Banner Groom Youth Long Sleeve T-Shirt. Youth Long Sleeve T-Shirt - White with banner, shield and bow tie says I'M THE GROOM. Perfect for bachelor parties, guys last night out and pre-wedding events. Matching Groom's Team design also available. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)