Personalized Autism Is Not Contagious But My Smile Is T-Shirt. Raise awareness with the Autism Is Not Contagious But My Smile Is design. This product is perfect for those who want to show support for autism awareness. It features a powerful message that challenges misconceptions about autism, reminding others that it is not something that can be caught like a cold, but rather celebrates the unique and contagious smile of individuals with autism. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.