Personalized Baseball 1st Birthday Women's V-Neck T-Shirt. Baseball league sports 1st birthday boy with baseball bats. Cute sports themed 1-year-old b-day baby party gifts. Happy Birthday one-year-old! 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