Personalized Environmental Genius Toddler Full Zip Hooded Jacket. Environmental Engineering, the profession for intelligent people with the letter E in engineering wearing a hard hat is a humorous engineering gift design for college students and engineers at back to school, birthdays, holidays and graduation. 7.5 oz., 60/40 cotton/polyester. Jersey-lined double-needle hemmed hood. Pouch pockets for all their treasures. Coverstitched shoulders and armholes. Coverstitched rib waistband and cuffs.