Personalized Physician Assistant (Worlds Best) Baby Bib. Cute gift for the World's Best Physician Assistant on a Baby Bib - White. Perfect for a new P.A. or a retired physician assistant too. 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"