COMPREHENSIVE PERFORMANCE AND PROTECTION: Engineered in Giro’s helmet test lab.||PROGRESSIVE LAYERING: Dual-density EPS foam liner designed to address high and low-speed impacts for more comprehensive energy management.||UNPARALLELED AIRFLOW: 21 Wind Tunnel vents and internal channeling allow air to flow through the helmet to enhance cooling power.||LIGHTWEIGHT AND DURABLE: In-mold construction eliminates excess weight and permanently fuses tough polycarbonate outer shell to the interior liner.view less