Personalized Nautical Little Sister Youth Long Sleeve T-Shirt. Little sister Youth Long Sleeve T-Shirt - White with a life preserver, anchor and cute pink fish says LITTLE SISTER. Perfect for little girl sailors and second mates. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)