Personalized 4th Birthday Party Girls Roller Skating Women's V-Neck T-Shirt. Cute roller skates and number 4 on a 4th birthday Women's V-Neck T-Shirt - Aqua party photo idea for a toddler girl turning four years 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