Personalized 3rd Grade Teacher Baby Bib. 3rd grade teacher Baby Bib - Pink back to school gift says I love my incredible kids. 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"