Personalized Mito Research Train Women's V-Neck T-Shirt. Mito Research Green Ribbon Awareness Train Women's V-Neck T-Shirt - White has room to personalize and makes a unique way to show support for someone with a mitochondrial disease. 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