Also called cotton wool tissue or double sided tissue. It is composed of two rib tissues. The vertical line of the reverse coil of the double rib weave is covered by the vertical line of the front coil of another rib weave, so only the vertical line of the front coil can be seen on both sides of the fabric. Double rib weave is widely used in the production of knitted inner and outer garments. Various cotton sweaters, trousers and fashions are made. They are soft and warm, with smooth and smooth surface, good elasticity and extensibility, and have no curling and scattering properties.