X by NBD Winny Midi Dress in White. - size XS (also in XXS) X by NBD Winny Midi Dress in White. - size XS (also in XXS) Self & Lining: 97% poly 3% elastane. Hand wash cold. Fully lined. Adjustable shoulder straps. Allover bead and sequin embellishment. Leg slit. Imported. XBYR-WD319. XND314 U19. With sexy silhouettes and daring cut-outs, X by NBD is the party girls go-to brand for the perfect dress. With lace overlay details, plunging necklines and sweet scalloped edges, X by NBD gives a modern makeover to cocktail dresses.