Personalized 6th Anniversary Wedding Anniversary Long Sleeve T-Shirt. Celebrate your anniversary in style with our 6th Anniversary Wedding Anniversary apparel and gifts. Show your love and commitment to each other with these beautiful and unique items. 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