Personalized Colon Cancer Blue Awareness Walk Ribbon T-Shirt. Colon Cancer T-Shirt - Tie Dye Pink with blue ribbon for colorectal cancer support and awareness walk events in March. 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.