Sizing Chart - see uploaded images.

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. 

Features:

• Moderate Compression - Compressive woven fabric to support the muscles, improve the hydrodynamic position of the body in the water and reduce drag
• Durable and Resistant Woven Fabric - Made with the best Italian woven technical fabric: more durable and resistant than knitted fabric and retains its shape over time
• Low Water Absorption and Flatter Surface - Its lightweight and quick drying properties (suitable for multiple events), together with its hydrophobic treatment, minimize water absorption and surface resistance, further improving hydrodynamics
• Great Comfort, Less Restriction - Durable low-profile flatlock seams, ergonomically placed, provide exceptional stretch for more freedom of movement and greater comfort
• World Aquatics (FINA) Approved