Personalized 33rd Birthday 33 Rocks Gift Long Sleeve T-Shirt. Fun pink birthday butterfly design has 33 Rocks quote and comes on a 33rd Birthday Long Sleeve T-Shirt - Pink gift for her. 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