Personalized Autism Awareness For My Brother Long Sleeve T-Shirt. Autism awareness for my Brother Long Sleeve T-Shirt - Vintage Royal Blue has peace sign heart and puzzle ribbon logo for an autistic spectrum disorder support month event. 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