Black Silk-Viscose Blouse. Silk-Viscose is a Light-weight, Non-stretchy fabric. 55% Silk ; 45% Viscose. Halterneck. Spaghetti straps. Sleeveless. Ties at the neck. French seams. Cut for a slightly loose, floaty fit. Machine wash 30°C. Model is 183cm and is wearing a size S.