Personalized Coolest Teacher Ever Women's V-Neck T-Shirt. Coolest teacher ever! Who's the best teacher? This one! Two thumbs up for this teacher. Great gift for your favorite educator! 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