Nike Fastback One Piece pairs HydraStrong performance fabric with a Fastback cut for durable, training-ready swimwear. The design prioritizes support and reduced chafing so you can focus on your swim. Key attributes: Black | Nero | Polyester | Chlorine-resistant | Quick-drying | Fade-resistant | Shape-retaining | Wide seamless straps | Fastback support construction | Reduces chafing | Full bottom coverage | V-neckline | Fastback back design | One-piece silhouette | Seamless wide straps | Dimensions & fit: Supportive fit | Moderate back coverage | Composition & care: 51% polyester | 49% polyester (chlorine-resistant)