Personalized Sister of the Groom blue wedding Women's V-Neck T-Shirt. Sister of the Groom blue Wedding Butterfly Women's V-Neck T-Shirt - White gift for your bridal party. Lovely blue butterfly marriage logo. 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