Personalized World's Best Social Science Teacher Baby Bib. World's Best Social Science Teacher Baby Bib - Blue and White, a perfect gift for your favorite Social Science Teacher. 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"