Personalized Traffic Eggineer Long Sleeve T-Shirt. Eggineers are engineering eggheads and this humorous traffic eggineer with a traffic light, a hard hat sporting a road and directional text will bring a smile to your engineer on birthdays, holidays, and graduation. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL