Great used condition Madewell Second Wave High-Neck One-Piece Swimsuit in Black! Size S. An always-timeless choice for your swim wardrobe, this Madewell one-piece swimsuit features a high neckline and a scoop back, and is crafted from monochrome fabric. Product features include: adjustable shoulder straps, shell: 80% recycled polyamide/20% elastane, and lining: 84% recycled polyester/16% elastane. Wash cold.