Personalized Authentic American Grandpa Long Sleeve T-Shirt. Patriotic Long Sleeve T-Shirt - Pink with a distressed red, beige and blue seal that says: AUTHENTIC AMERICAN GRANDPA, Crafted With Pride In The United States of America. 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