Duchess Satin Fabric Bridal Dressmaking Fabric by the Met. Fabriques Luxury 100% Pure Silk Duchess Satin Fabric For Wedding Dress Buy Silk Silk Duchess Satin Etsy Silk Duchess Satin Etsy. Duchess satin is a heavier weight, luxurious, soft, and shiny fabric generally used in eveningwear, lingerie, bridal wedding, and high end sportswear. The Chocolate Silk Duchess Satin Fabric has a satin weave with a beautiful pearly sheen and a matte back. Duchess satin is sturdy and hold its shape when draped. This is a great silk fabric for structure and crisp volume and very easy to work with. The fabric is sold by the Yard, and measures 54 inches in width.