Personalized Mechanical Engineer Zombie Fight Toddler Full Zip Hooded Jacket. Mechanical Engineer I fight zombies in my spare time is a humorous gift design for engineering zombie terminators. What would this world be like without them? 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.