Personalized Choo Choo 1st Birthday Women's V-Neck T-Shirt. IT'S MY 1ST BIRTHDAY with colorful choo choo train with party hat, balloons, birthday gifts and big number 1 candle Women's V-Neck T-Shirt - White. 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