The extremely durable and chlorine-proof arena 50th Anniversary Super Fly Back Swimsuit is ideal for both competitive and regular swimmers who swim frequently in the pool. This unique design is decorated with a motif inspired by the original 1973 logo in celebration of arena's fifty years of passion for water sports. The open back, thin straps and high-cut leg provide maximum freedom of movement, excellent feel of the water and reduced drag. 100% chlorine-resistant MaxLife Eco fabric with integrated UV protection UPF 50+ is extremely quick-drying and long-lasting. This eco-friendly version of arena's MaxLife fabric contains at least 50% recycled polyester from PET bottles. Plus the production process was optimized to save energy, reduce CO2 emissions and minimize water usage. Every component of the STANDARD 100 by OEKO-TEX® labeled fabric has been tested for harmful substances, ensuring this article is harmless to human health. The test is conducted by our independent OEKO-TEX® partner institutes based on our extensive criteria catalogue.