Ann Demeulemeester's Eleonor X-long slip dress is rendered in black washed silk satin with a floor-length, fluid silhouette. A scoop halterneck and open back with Y-strap define the construction, while a spliced gathered back panel introduces subtle disruption to the garment's clean drape. black washed silk satin scoop halterneck sleeveless open back with Y-strap back spliced gathered panel floor length draped