Personalized 12th Anniversary Gift T-Shirt. 12th Wedding Anniversary design has beautiful teal swirls and comes on a T-Shirt - Gold gift for celebrating your 12 years together. Everyone loves our Custom T-Shirts! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.