Equipped like the Pros! Pro-level performance for competitive swimmers. The arena Powerskin Impulso Swim Racing Jammer for boys offers moderate compression for great muscle support, an improved hydrodynamic position in the water and reduced drag. This technical suit is approved by World Aquatics. Cut from a lightweight and durable compressive woven fabric. A hydrophobic treatment ensures low water absorption and reduces the drag for high-class hydrodynamics. Be ready for the race in a short time! The comfortable stretch fabric allows easy and quick on-and-off. Strategically placed flatlock seams provide great comfort and improved freedom of movement.