Personalized CHD Awareness Son Is My Hero Ribbon T-Shirt. CHD congenital heart defect awareness support ribbon T-Shirt - Purple with my son is my hero message. 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.