Personalized 6th Birthday Football Sports Boys Women's V-Neck T-Shirt. 6th Birthday Women's V-Neck T-Shirt - Heather has big football sports ball with number 6 and being six is a ball slogan for boys who love football. 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