Personalized Red Ribbon Awareness Owl T-Shirt. Cute awareness owl T-Shirt - Vintage Black with red ribbon on its belly to show support for heart disease, stroke, hypertension, and aids. 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.