Personalized World's Greatest Nephew Baby Bib. For all the "greatest" people out there! Get your World's Greatest nephew Baby Bib - White and Green today! 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"