Personalized Daddy's First Mate Sailing Nautical Youth Long Sleeve T-Shirt. Daddys First Mate Youth Long Sleeve T-Shirt - Royal Blue has blue nautical ship's wheel logo for a little boy who loves sailing. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)