Black Silk Dress Outfit: Effortless Elegance Black Iris Clothing for Women Online Sale up to 85% off Lyst 9 Black Silk Dress Ideas Shop Women's Black Silk Dresses: Mini, Midi, Maxi REVOLVE. The Iris is a new silk mini dress perfect to dress up or down this style features a cowl neck, short flutter sleeves, and a tie at the back. Self: 90% Silk 10% Elastane, Lining: 97% Polyester, 3% Elastane Model is 5'10 and wearing a size S Dry Clean Only