These headpieces are designed to fit into the Born Copenhagen babynests. Instead of using a regular muslin cloth to keep from washing the babynest all the time when the baby spills, Born Copenhagen have designed this headpiece which is both water repellent and has a waterproof membrane. They come in the same prints as the babynests so that the you can enjoy the beautiful print of the nest, while still protecting it from little accidents that are inevitable with a newborn baby.