The Giro Trella Mips Urban Helmet offers a comfortable fit, with a deep coverage and open ventilation. The Trella ?uses a design that is suitable for nearly any ride. It’s built using In-Mold construction to reduce weight while enhancing durability that stands up to everyday use.  The ease and comfort of Giro's acclaimed Roc Loc Sport MIPS fit system makes fitting as easy as turning a dial, and the fit system is seamlessly integrated with the Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts. When you put it all together, you get the versatility you need to ride everything from forested fire-roads to swooping singletrack trails to the city streets. Giro Trella Mips Urban Helmet Features Women’s Series Integrated MIPS technology Full Hardbody shell Quick-dry padding Reflectivity Giro Trella Mips Urban Helmet Specifications Ventilation: 18 Vents Construction: In-Mold polycarbonate shell with EPS liner Fit System: Roc Loc Sport MIPS