[Size]: The bonnet size is adjustable. Under normal conditions, the diameter is 13 inches, suitable for people with a head circumference 19-26 inches. [Double layer material]: The satin bonnet is designed with double-layer fabric can wrap the hair well, and after using the hair mask, it will not stain the sheets when sleeping. [Silk material]: The soft silk bonnet material is used to fit the skin, there will be no inappropriate places, and the texture is soft enough to make it comfortable to use anyway. [Applications]: This adjustable bonnet can be used to wrap the hair while sleeping so that it will not be messy, and it can also protect the hair from getting wet when taking a bath. [Multifunctional]: This sleep bonnet Can also be worn during makeup, bathing, housework