Personalized 45th Anniversary Celebrate Long Sleeve T-Shirt. 45th Anniversary Long Sleeve T-Shirt - White with words “Celebrating Our 45th Anniversary” for a 45th Anniversary Celebration. Add a name or customize for a personalized anniversary gift. 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