Personalized Environmental Blue Oval Women's V-Neck T-Shirt. Environmental Engineer, the sky is the limit on a blue oval is a humorous environmental gift design for 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