Personalized World's Best Grandpa Women's V-Neck T-Shirt. World's Best Grandpa! Great Father's Day gift for your Grandpa, the world's best Grandpa! 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