【Easier to Take Care of Your Hair】Satin silk bonnet used to fix the hair and reduce the hair loss caused by external static electricity and friction. It worth be used in all seasons. The satin bonnet is soft and breathable but not waterproof. Please don't use the silk bonnet as a shower cap for bathing. | 【Size Adjustable】 Hidden adjustment straps inside can adjust the size, and the elastic adjustment straps can make it not easy to fall off when sleeping, suitable for most people's head shapes [suitable for head circumference 54cm-62cm]. | 【New Upgrade】High-quality fabric is newly upgraded, soft and comfortable, the silk cap is designed with a flat elastic band, which is comfortable to wear all night. Can be used on both sides for sleeping, makeup, face washing, cooking and yoga. | 【Light and Breathable】The inner lining of the nightcap is composed of high-density silk satin. The soft material protects your hair from external friction while keeping your hair clean and cares for your hair. Please rub the sleep cap gently when washing and let it dry naturally to avoid affecting to use. | 【Quality Guarantee】If you have any problems or concerns about your purchase,please feel free to contact us at any time, we will do everything we can to help.