Personalized Fueled By Doughnuts Women's V-Neck T-Shirt. A bicycle with the text fueled by doughnuts is a humorous design for bikers at birthdays and holidays. 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