Personalized Physics Fanatic Dark Products Newborn Layette. Physics fanatic in edgy in blue broken text is a unique gift design for scientists, students and teachers. 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