Personalized My Mom is the Worlds Best Teacher Women's V-Neck T-Shirt. Teacher gift Women's V-Neck T-Shirt - Heather has my Mom is the Worlds Best Teacher slogan for her little one to wear. 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