Personalized Running Marathon Race Runner Long Sleeve T-Shirt. Colorful running Long Sleeve T-Shirt - Pink is perfect for someone who loves to run in a 5K, 10K, marathon or for fitness. 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