Personalized Little Cowboy 1st Birthday Youth Long Sleeve T-Shirt. Western theme 1st birthday THIS LITTLE COWBOY IS 1 Youth Long Sleeve T-Shirt - White with cowboy hat, toy horse, cactus and sheriff's badge with big number one. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)