silk duvet is filled with 100% natural animal protein silk fibre, good to our skin, it is soft and light but nice and warm silk duvet Fabric: 16mm charmeuse silk;Dimension: 225x220cm;Filling Content: premium mulberry silkFilling weight: 200gsm(summer), 300gsm(autumn), 550gsm(winter)Craftmanship. ring stitching pattern, 1.5cm piping edge.package: PVC bag