This type of satin bonnet is flexible enough to cover all head and hair sizes. You can double and shrink to fit. The satin material is very comfortable and can keep your hair intact. To make it easier for the hair to get inside, you can tie the hair into a loose knot, put on a hair cap, and then shake the hair to loosen the knot, so that the hair falls freely into the nightcap.
Both sides are made of satin.