Personalized Coolest Nuclear Engineer Women's V-Neck T-Shirt. The world's coolest nuclear engineer text and a snowman surrounded by a green glow and holding a Geiger counter is a funny design for engineers at birthdays and holidays. 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