The arena Fireflow collection unlocks the alchemy of elite swimmers: the fire of the competitive spirit and the flow of calm focus. The extremely durable and chlorine-proof arena Jammers for men from the arena Performance line are ideal for both competitive and regular swimmers who swim frequently in the pool. They are designed with a new interpretation of arena's diamonds. The highly chlorine-resistant MaxLife Eco fabric with integrated UPF 50+ UV protection 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 of the fabric was optimized to save energy, reduce CO2 emissions and minimize water usage. Equipped with front lining, the adjustable internal drawstring ensures an excellent fit. Side length: 17.7 inches. The OEKO-TEX® STANDARD 100 of the fabric means that it has been tested for harmful substances, ensuring is harmless to human health and the environment.