arena's extremely comfortable Placement Swim Shorts for boys are designed for young fitness swimmers. Made of chlorine and saltwater-resistant MaxFit Eco fabric with integrated UPF 50+ UV protection. This 4-way stretch fabric guarantees a perfect fit, maximum freedom of movement and outstanding comfort. It is the eco-friendly evolution of arena's MaxFit fabric and is made with recycled polyamide. Equipped with front lining, the adjustable internal drawstring provides customization. Side length: 22 cm. Every component of the STANDARD 100 by OEKO-TEX® labelled fabric has been tested for harmful substances, ensuring this article is harmless for human health. The test is conducted by our independent OEKO-TEX® partner institutes based on our extensive criteria