Satin Bonnet - One Size Fits Most: M/L Size 22 inch. Diameter Perfect for: long hair weaves curly hair braids/box braids prevent lace .Hair Care Promotes Hair Growth - For some women, wearing a bonnet helps lock in moisture in their hair, help hairstyles last longer, minimize breakage for longer hair growth, and reduce the drying effects of repeated friction from pillowcases. .Hair Wrap - Quality & Style: Our bonnets are made of a silk blend and are colorful and stylish enough to be worn both in and out of the house. .Sizes - Our Satin Hair Clip has a wide elastic band, is non-slip, and will not leave lines on your forehead. It also has a single layer of satin to keep your head cool. .Enjoy Easier Mornings - Protect your hair at night for easier mornings. Wearing a hair cap is one of the ways to protect your hair while you sleep. They help reduce frizz when you wake up, prevent knots and tangles, thinning and breakage. .Care and Longevity for Silk Sleep Cap - We want your hair cap to last a long time before needing to be replaced, so we recommend hand washing or machine washing on a 'delicate cycle'.