Made for fun, performance, and durability, the Sea Water Swim Jammers for boys from the arena Performance line are perfect for both competitive and recreational swimmers who train frequently. Designed with MaxLife Eco fabric, these boys' swim jammers offer maximum chlorine resistance, UPF 50+ UV protection, and a long-lasting fit that stands up to daily use. The quick-drying fabric contains at least 50% recycled polyester sourced from PET bottles. A soft front lining adds comfort, while the adjustable internal drawstring ensures a secure, custom fit. Side length: 14.2 inches. OEKO-TEX® STANDARD 100 certified, this fabric has been tested for harmful substances and is safe for skin and the environment—making it a smart choice for dedicated swimmers.