Personalized Alzheimers Disease Awareness Great Grandpa Purple Women's V-Neck T-Shirt. Alzheimers disease butterfly lets you show your support for your Great Grandpa with his fight against Alzheimers with this cute purple ribbon awareness I Love My Great Grandpa Women's V-Neck T-Shirt - White. 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