Personalized Black Math Universe Baby Bib. Math is the language of the universe text in black and white. Fun gifts for math lovers at birthdays, holidays, graduation and back to school. Our Baby Bib is rated high in convenience and durability and with a variety of fashionable colors, your baby can be trendy. Mix and match to any outfit. 100% cotton ring spun combed heather colors are cotton-poly. Width 7.75", Length 11.75"