Our satin bonnets are made of premium satin is completely smooth and silky and available for pretty colors and patterns;Magic satin fabric can help lock hair moisture, let you feel warm on cold days and cool on hot days. Our satin bonnet have adjustable and stretchable head size for comfortable wear; After many improvements, the satin bonnet has a thin elastic band and an easy-to-use drawstring on the bottom, which will make your head more comfortable; The band can be stretched to fit different head size. If you have curly or wavy hair, you know that sleep will make curly hair in a mess when you wake up in the busy morning; Our satin silk bonnet is designed with full cover premium satin, which will make your hair frizz-free and tangle-free by reducing friction between your hair.