Personalized Sweet 16 Stamp Women's V-Neck T-Shirt. Sweet 16th birthday Women's V-Neck T-Shirt - White with a distressed canceled postage stamp, fun pink birthday cake and the number 16. 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