The extremely durable, chlorine-proof, and eye-catching Puzzled Challenge Back Swimsuit for women from the arena Performance line is ideal for both competitive and regular swimmers who swim frequently in the pool. The highly chlorine-resistant MaxLife Eco fabric, with integrated UPF 50+ UV protection, is extremely quick-drying and long-lasting. The open back, in combination with thin straps and a high-cut leg, provides maximum freedom of movement, an excellent feel for the water, and reduced drag. It is equipped with a comfortable lining. This technical swimsuit is NCAA and NFHS compliant. The OEKO-TEX STANDARD 100 certification of the fabric means it has been tested for harmful substances, ensuring it is harmless to human health and the environment.