NBD Zella Top in Blue. - size XS (also in XXS) NBD Zella Top in Blue. - size XS (also in XXS) Self: 100% polyLining: 97% poly 3% elastane. Hand wash cold. Wrap styling with tie closure. Elastic cuffs. Satin fabric. Imported. NBDR-WS448. NBS301 H19. For the girl who's the life of the party. For the girl who's always up for a glass of champagne. For the girl who likes to keep her closet as filled with as her social calendar, there's NBD. The young-at-heart line features dresses that every it girl covets and pieces that are sexy, flirty, fun and now.