Personalized Chemistry Bubbles Newborn Layette. Chemistry in rough blue text surrounded by blue bubbles is a fun design for chemists,students and teachers of chemistry at birthdays, holidays, graduation and back to school. 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