Personalized Royal Bioengineer Toddler Full Zip Hooded Jacket. Bio Engineer text wearing a crown is a humorous bioengineering design. Tickle the funny bone of your favorite bioengineering king or queen 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.