Personalized 1st Bird Day Women's V-Neck T-Shirt. IT'S MY BIRD-DAY 1st birthday Women's V-Neck T-Shirt - White with a cute little blue bird, yellow and red bird house, butterflies, clouds and number 1. 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