Personalized Biology Sphere Toddler Full Zip Hooded Jacket. Biology the is science of life. This colorful design makes a great gift for students, teachers, and medical professionals at birthdays, holidays, graduation and back to school. 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.