Personalized Professional Eggineers T-Shirt. Eggineers are engineering eggheads. Society of Professional Eggineers text with an egg carton of engineering eggheads will tickle the funny bone of your engineer at birthdays, holidays and graduation. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.