Personalized I Am HIs Voice He Is My Heart T-Shirt. Our autism awareness design is not only stylish but also meaningful. It represents the strong bond between individuals with autism and their loved ones. By wearing this design, you are not only spreading awareness but also showing your support and love for those affected by 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.