High-quality and breathable fabric: Made of 100% silk fabric. Similar to silk in texture and function, it is gentle on your hair and skin. The silk sleep cap is consistent inside and out, super soft and breathable. If you have curly hair, it is definitely worth trying. Protect your hair: Use this silk hair wrap when you sleep to protect your hair from frizz and split ends. It minimizes friction between your hair and the pillow, protecting your hair from tangling and losing moisture. Our silk cap is also colorfast, keeping your pillows and bed nice and tidy. Wash in cold water the first time to remove any residual color. One size fits all with a wide elastic band: The cap measures 32 cm, spacious enough to perfectly wrap hair of all styles. At the same time, the elastic band is made of super stretchy natural latex, which is wide and soft, suitable for most head circumferences, and will not leave marks on your forehead. The ladies' caps are very elastic and do not slip easily.