Personalized Happy 100 Days Of School Baby Bib. Our 100 Days of School outfit is not just for kids. It also doubles as a fabulous costume for women on the 100th day of school. Whether you're a teacher or a parent, you can join in the festivities with our unicorn-themed design. And if you have a daughter, we even offer a matching 100th day of school outfit for girls, so the whole family can celebrate together in style. 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"