Personalized Great Grandma Butterfly Women's V-Neck T-Shirt. Worlds best Great Grandma cute blue butterfly Women's V-Neck T-Shirt - White for a Mothers Day gift idea. 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