Personalized 1st 5K Race Running Fitness Baby Bib. Cute my 1st 5K run Baby Bib - Pink and Fuchsia fitness running outfit for girls. 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"