Personalized Best Step Mom Ever Baby Bib. Best Step Mom Ever! If your step mom is a superhero, then this is for her! Comic book style mother's day gift for any super step mom. 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"