Personalized Sin to Look This Good at 40 Long Sleeve T-Shirt. Look This Good At 40 It's a sin to look this good at 40. Great birthday gift for the big 4-0. Happy 40th birthday, 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