Certified to FIA CIK homologation standards, the KMX-9 v2 S has been specifically designed for younger/smaller body types. With an aggressive design and vibrant colors for entry-level and intermediate runners, the two-layer construction offers optimal levels of protection and lightness. This suit also has a 100 percent polyester towel lining for driver comfort. Other rider design details include an angled front vent, stretch panels at the back, shoulders and waist for an optimized fit, and breathable mesh material in the crotch and underarms.