Personalized 15th Anniversary Rockin and Rollin Long Sleeve T-Shirt. Celebrate 15 Years Together with funny still rocking and rolling after 15 years Long Sleeve T-Shirt - Purple. Makes a great gift idea for a 15th Anniversary Celebration. 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