Personalized Autism I Walk For My Niece Long Sleeve T-Shirt. Autism I Walk For My Niece Long Sleeve T-Shirt - Pink has a colorful puzzle ribbon for autistic spectrum disorder walks in April. Also appropriate for PDD, PDD-NOS, Aspergers. 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