The Adjustable Silk Satin Hair Bonnet for Sleeping is designed with an elastic band located at the back of the head, ensuring a secure fit throughout the night. This prevents the bonnet from slipping off and leaving any lines or marks on your face. The adjustable elastic clasp allows for a perfect fit, accommodating head circumferences of 20.9-24.5 inches. Made from silk satin material, this bonnet provides a soft and comfortable sleeping experience. Its breathable design allows your hair to breathe during sleep, preventing scalp overheating and greasy hair. The bonnet also reduces friction between your hair and the pillow, minimizing issues such as hair curling and tangling. By maintaining hair moisture, it helps prevent dryness and breakage. Suitable for all hair types, including curly hair, natural hair, straight hair, and braids. The Adjustable Silk Satin Hair Bonnet is not only ideal for sleeping but also has various other uses. It can be worn during picnics, face washing, applying face masks, essential oil maintenance, makeup removal, doing household chores, and on windy days to keep your hair away from your face. Additionally, it is perfect for baby-carrying as it effectively prevents your child from grabbing your hair. This bonnet offers several advantages. Its beautiful design exudes a royal luxurious style, making you feel confident and beautiful like a queen from ancient times. The double-layered construction enhances hair protection, and it is colorfast, ensuring it will not stain pillows or bed sheets. Suitable for women of all age groups, this bonnet is perfect for year-round use. Key Features: Adjustable elastic clasp for a secure fit Silk satin material for a comfortable sleeping experience Breathable design to prevent scalp overheating and greasy hair Reduces friction between hair and pillow to minimize hair curling and tangling Maintains hair moisture to prevent dryness and breakage Versatile usage scenarios for various activities Beautiful design with a royal luxurious style Double-layered construction for enhanced hair protection