Personalized Autism Autistic Spectrum Ribbon Support Walk Long Sleeve T-Shirt. Autistic spectrum disorder Long Sleeve T-Shirt - Pink has peace sign, heart and puzzle ribbon logo with Autism support and awareness message. 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