SILKE London's Double-Lined Silk Bonnet is made from 100% mulberry silk, designed for comfortable overnight wear. The SILKE Bonnet / Hair Wrap works as a lightweight protective sleep cap that helps reduce friction overnight. Suitable for curly, coily, wavy, and straight hair types, this sleep bonnet helps maintain hairstyles and keep hair feeling soft, smooth, and frizz-free by morning while supporting longer lasting styles and simple everyday hair care routines.