This is a stretchy cotton liner that can be worn under wigs, headscarves or hats for comfort or added coverage. This under cover measures approximately 8.25 inches wide and 8 inches high when laid flat. The cotton fabric makes it breathable, and there is a non-slip band sewn onto the bottom so you can now wear all your head coverings in comfort and security! The 2 inch band on the bottom is made of a thin velour fabric which creates a gentle friction to your hair or scalp which prevents the cap, or any cover worn over it from slipping.