A good excuse to RSVP yes. This silk dress is based on a vintage slip dress style from the 1990s, in our signature silk crepe de chine, a machine-washable fabric we love for its luxurious feel and matte look. Fit & Flare: Fitted bust and empire waist with a flare skirt. V-neck. Invisible zip at wearer's left. Lined bodice, unlined skirt.