Theory Perfect Sheath Sleeveless Midi Dress in black, size 6

Theory perfect sheath dress in perform tech. Square neckline and back. Double-thin straps. Slim silhouette. Hidden back zip. Midi length New with tags PRODUCT DETAILS Self: 88% nylon, 12% elastane Zipper Binding: 94% poly, 6% polyurethane Dry clean only Partially lined Double strap detail Hidden back zipper closure 16" pit to pit, 35.5" pit to hem