Personalized Brown Awareness Ribbon Women's V-Neck T-Shirt. Personalize this brown awareness ribbon and buy colon cancer support t-shirts, anti-tobacco tees and brown ribbon awareness gifts. Add a name or slogan with the designer tool. 5.0 oz., 100% pre-shrunk cotton Athletic Heather is 90/10 cotton/polyester 1x1 rib collar with mitered v-neck Shoulder-to-shoulder taping Ladies' fit