Personalized Shih-Tzu Dog Dad Long Sleeve T-Shirt. Worlds best shih-tzu dad Long Sleeve T-Shirt - White dog owner idea Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL