Personalized Mimi Of Twins Grandma Baby Bib. This cute grandma of twins design is perfect for the Mimi of twin boys or twin girls. 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"