Personalized Tropical Retirement Watercolor Long Sleeve T-Shirt. Happy Retirement! Watercolor flamingo tropical theme for the senior about to retire ... and loving it! Great gift idea for a retirement party. 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