Dupion (also referred to as dupioni or douppioni) is another form of pure silk, light in weight with a shimmering, crisp texture.The double-thread nature of the silk makes it stronger than other silk variants. It is known to have many lumpy, lateral strands of thread that are called slubs. It is very resistant to wrinkles and can hold a crease pretty well. People often call banarasi dupian silk as Khadi silk.