Personalized Arthritis Awareness Blue Ribbon Owl T-Shirt. Perfect for an awareness walk or to show support, this Arthritis Awareness Owl T-Shirt - Purple has bird with blue ribbon on its belly. 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.