Personalized 6th Anniversary Cruise Ship Long Sleeve T-Shirt. 6 Year Wedding Anniversary Long Sleeve T-Shirt - White gift for a 6th anniversary says Cruising Together for 6 Years with a colorful cruise ship logo. 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