Features: 100% quality satin fabric Reduces friction while you work & sleep. Adjustable with elastic band & toggle stop cord in the back to fit head sizes of 21 inches (smallest) to 34 inches (largest) Provides protection under unlined scrub hats, beanies, or other head gear. Hand or machine wash in cool water. Air dry by laying flat. Avoid twisting or contorting the fabric. For more items, please visit my shop Satin Scrub Hat, Adjustable Double Layer Bonnet, Protective Long Hair Hat For Locs, Braids, Natural Bonnet