Personalized 40 Super Birthday Long Sleeve T-Shirt. You're 40! Able to leap over the hill in a single bound! You may not feel like a superhero at forty, but you can look like one. Funny birthday gift for the super hero in your life. 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