Banana republic sweater dress

Softly warm, lightweight, form fitting banana republic dress. Soft grey with ruching on one side. One of those dumpy-on-the-hanger yet lovely-flattering-on-the-body sort of dresses. The torso is double lined all the way around which adds warmth for fall/winter/evening wear, and prevents worry about lines or pudge showing. Unsure of the material as the inside tag has been cut off, ugh!