Personalized Someone With Autism Lights Up My World T-Shirt. Whether you're looking for a gift for someone with autism or simply want to raise awareness, this product is a wonderful choice. Wear it proudly and let the world know that someone with autism truly lights up your world. 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.