Personalized Traffic Engineer Interchange Women's V-Neck T-Shirt. Traffic Engineer text with an inescapable interchange layout is a funny design for your favorite traffic engineer at birthdays, holidays and graduation. 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