Personalized Worlds Best Athletic Trainer Daddy Baby Bib. My Daddy is the Worlds Best Athletic Trainer Baby Bib - Orange has cute worlds best design with slogan for the son or daughter of an Athletic Trainer. 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"