JCREW Bow-tie one-shoulder one-piece swimsuit Navy Blue, Size 2 Your favorite one-shoulder silhouette with a feminine flourish: a pretty (adjustable!) bow. Polyamide/elastane. Unpadded. Lined. Removable lining. Our swimsuits are machine washable, but we recommend hand-washing as it helps keep the fabric and the shape of the suit looking newer, longer. Excellent condition. Only wore twice.