Reversible Mulberry Silk Bonnet: Cheetah & Black, Double 。New Black Mulberry Silk Sleep Hair Cap Bonnet Cover for Adults Unisex Size: 55cm = 21.7 Inches/ Large One Size only but can fit head sizes 21.7 inches to 38 inches Color: Black {about the item} Fabric: 100% Mulberry Silk, 22 Momme 6A Grade Our Silk Sleeping Caps are made of 100% Mulberry Silk 22 Momme 6A Grade with elastic band. It is very soft, comfortable, smooth and breathable. It protects your hair from breakage which also helps you preserve the natural moisture of your hair. The size is best for long, thick hair. {How to use it} We suggest you try twisting your hair up into a bun (make sure all your hair is tucked in) and then put the cap over your head. You can have your ears tucked in to keep the cap on while you are having a good night sleep. If you have more styling ideas, Please feel free to message us.