Personalized Worlds Greatest Pappy Women's V-Neck T-Shirt. Worlds greatest pappy in text with the earth in place of the letter O in the word world is a unique gift design for grandfathers on birthdays, holidays and Father's Day. 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