TheGiro Register Helmetsis ideal for any ride, any time. This helmet combines a sleek design and lightweight construction with several features that compliment your style on the road or trail.Made with In-Mold Construction technology in a comfortable Universal Fit size, and equipped with our convenient Roc Loc Sport system, the Register adjusts with a simple turn of the dial so you can customize the fit in seconds. A range of colors from mild to wild lets you choose exactly how your on-bike style comes together, creating a helmet that looks and feels like it was made just for you. Giro Register Helmets Features In-Mold polycarbonate shell with EPS liner Removable Quick Link visor Full Hardbody shell Roc Loc Sport fit system Quick-dry padding Compact shape Reflectivity Giro Register Helmets Specifications Ventilation: 22 vents Construction:In-Mold polycarbonate shell with EPS liner Fit system:Roc Loc Sport