The SK-6 is designed specifically for pro level karting. With features and advancements that provide incredible ventilation, comfort, lightness, and feeling of confidence many have come to expect from Arai. Thanks to its incredibly strong, proprietary cLc (Complex Laminate Construction) shell, its strength allowed Arai to give the SK-6 an extremely soft EPS liner for better comfort and impact energy management. If youre serious about taking your karting to the next level, choose the helmet thats already there. Snell K2015/K2020 certified.