Zadig & Voltaire Roberts Jac Chains black silk & lace asymmetrical dress, XS Very stylish and edgy design with drop waist. The sleeves have a peekaboo detail that you can’t see on the model. The lace edging is gorgeous at the neckline, hemline and at the waist. There are stars in the lace at the hemline. 100%silk. Zips up the back.