Personalized Skull and Crossbones Polar Bear Baby Bib. Polar Bear skull and crossbones Baby Bib - Navy has funny smiling bear face with bones. 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"