Double Gauze is a 100% cotton fabric. It is composed of two thin layers of cotton gauze that has a thread every 1 centimenter that is woven through both layers joining them into one fabric. The resulting fabric is light, airy, and has a wonderful drape, yet isn't sheer. You won't need a lining for tops. Depending on the color of the fabric, you may want a slip for skirts. Machine wash and dry on cool settings.