Personalized Biology Teacher White Fish Newborn Layette. Biology teacher text in the shape of a fish is a unique gift design for your favorite teacher or college graduate at back to school, birthdays, holidays and graduations. 100% combed ringspun cotton 5.8 ounce 1×1 baby rib sleeper. 3/8" flatlock binding at envelope neck and cuffs. Back sleeve flap to protect hands. Elastic opening at bottom. Infant: 0-3 Months