Michael Costello x REVOLVE Simone Gown in Black. – size M (also in XS) Michael Costello x REVOLVE Simone Gown in Black. – size M (also in XS) Self: 100% polyLining: 95% poly 5% elastane. Hand wash cold. Partially lined with stretch fit brief. Halter neck styling with hidden hook and eye closure. Open back design with hidden back zipper closure. Allover lace fabrication with bottom hem bead embellishments and lurex threading detail. Imported. MELR-WD114. MCD127 H18.