Si-12 Introducing the all-new Super Lite Si-12 from HJC. Everything you've always wanted in a helmet and less. Our innovative shell technology allows us to build a fully equipped racing helmet that feels as light as feather, yet provides all the features and comfort you demand. Just what you'd expect from HJC-the world's #1 helmet company. Advanced Super Lite Composite Weave Shell: Super lightweight. Superior fit and comfort using advanced CAD technology. "ACS" Advanced Channeling Ventilation System: Full front to back airflow flushes heat and humidity up and out. Polycarbonate Anti-fog Shield: Optically-superior 3D design provides 95% UV protection and anti-scratch coating. Fire Resistant Comfort-Carbon Interior: Moisture-wicking and comfortable. Optional R.S.T. Shields: Available in silver and blue. HANS Device Compatible: Pre-drilled for posts. Durable, Lightweight Titanium Top Front Vent. Deluxe Helmet Storage Bag Included. SA2005 Approved.