C70 Helmet - Solid - Semi-Flat Anthracite - Small Advanced Polycarbonate Shell — Lightweight, superior fit, and comfort using advanced CAD technology, Aerodynamic shell with large eye port for greater visibility, Advanced Channeling Ventilation (ACS) System — Full front to back airflow flushes heat and humidity up and out, Double D-ring, RapidFire™ Shield System — Simple and secure shield ratchet system provides ultra-quick, tool-less removal and installation for efficient operation, Removable, moisture-wicking interior