Personalized Math Tribe School Teacher Women's V-Neck T-Shirt. Fun back to school math teacher or student gift with teepee and Math Tribe quote on a Women's V-Neck T-Shirt - Heather. 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