Personalized 3rd Birthday Mermaid 3 Year Old Girl Baby Bib. Cute mermaid themed 3rd birthday outfit for a toddler girl with number 3 design. 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"