Personalized Coolest Engineer Baby Bib. A snowman wearing a hard hat with text the world's coolest engineer is a humorous engineering design. Fun gifts for college students and engineers for birthdays and the winter holidays. 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"