Personalized Autism Awareness Month Puzzle Piece Long Sleeve T-Shirt. Autism awareness Long Sleeve T-Shirt - Vintage Royal Blue support month walk gear with puzzle piece logo and support advocate believe awareness quote. 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