MIPS PROTECTION SYSTEM - All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards. The goal of Giro's Integrated Mips-equipped helmets is to reduce rotational forces, while enhancing fit and comfort by combining the Mips slip plane with the helmet's adjustable fit system. Giro believes that helmets equipped with this technology can reduce the amount of rotational force that may be transferred to rider's brain in certain impacts. , HARDSHELL WITH IN-MOLD HARDBODY LOWER WRAP - The two-piece shell combines a tough outer hard shell with a polycarbonate lower shell permanently fused to the liner for durability without excess weight. , ROC LOC CITY MIPS FIT SYSTEM - The Roc Loc City Mips fit system features a rubberized dial for easy adjustability and large plush pads for ultimate comfort and stability. The fit system is made of a durable flexible material for long-term performance and daily lockability. The three positions of vertical adjustability and 6cm range make this a perfect fit for your daily use. , WIND TUNNEL VENTILATION - Giro helmets are developed utilizing Giro's proprietary Wind Tunnel ventilation system. This elaborate design combines active vents in the helmet's shell with exhaust channels inside the helmet that thrust fresh, cool air over and around the rider's head while forcing heat and stale air out. It's the most effective cooling system available, and a difference you can feel every time you ride. , Adjustable, clear molded eye shield, Compatible with Caden Vent Light. Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older