Personalized Proud To Be An American Kid Long Sleeve T-Shirt. This smiling USA boy is proud to be an American. So cute for Independence Day 4th of July celebrations, it comes on a Long Sleeve T-Shirt - White gift for kids. 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