Personalized Blue Mechanical Engineer Toddler Full Zip Hooded Jacket. Mechanical Engineer text against a light gear background is a unique gift design for your favorite engineer at 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.