Silk Laundry Sienna Dress Cacao Size XL Cacao Brown Good Condition, Marks from Use in Armpits (see photos!) $415 MSRP Product Details Business up front, off-duty in the back, this silk open-back dress by Silk Laundry is full of surprises. Style with flat sandals and a long pendant necklace to toe the line between polished and cool-girl chic. Materials and Measurements Brown satin (100% Silk). A-line. Long sleeves. Crewneck. Tie closure. 58" from shoulder to hemline. Imported.