These scrunchies are made from 100% Silk Charmeuse material. Silk fibers are very similar to human hair, reducing hair damage, such as split ends. The best part of it is that they leave no trace even if they are worn all day. It is hard to go back to a regular scrunchie after using a silk one. And to top all of this, the purchase of these scrunchies helps cover the costs of production and shipping of more headbands for people working in the front lines.