Main Ingredients: 100% high-quality mulberry silk, made from strictly selected defect-free cocoons and silk.It adopts the ancient Chinese water-weaving technique of the Song Dynasty: the silk threads are soaked in seven kinds of natural clean water to soften sericin, enhance toughness and boost luster.It was inscribed on China’s National Intangible Cultural Heritage List in 2008 and added to the UNESCO Representative List of the Intangible Cultural Heritage of Humanity in 2009.