Personalized Chemistry Bubbles Toddler T-Shirt. 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. A toddler-soft cotton tee in look-at-me, big kid colors. 4.5 oz., 100% combed ringspun cotton. White is sewn with 100% cotton thread. Topstitched rib crew neck. Double-needle stitched sleeves and bottom hem. Shoulder-to-shoulder taping.