The Oh Sheila Gown by X by NBD is guaranteed to have all eyes on you. Skin-baring side cut-outs with tie closures create dimension and allow for maximum movement on the dance floor.. 100% poly. Hand wash cold. Unlined. Side cut-outs with tie detail. Hidden side zipper closure. XBYR-WD148. XND49 H17. 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.