Personalized Best Grandpas Have Mustaches Women's V-Neck T-Shirt. Women's V-Neck T-Shirt - White with old time baseball style text that says THE BEST GRANDPAS HAVE MUSTACHE'S with a big handle bar mustache for the word MUSTACHE. 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