The Bell Z20 Ghost MIPS Road Helmet is the result of years spent analyzing how helmets fit, optimizing aerodynamics, reviewing test data, gathering real world feedback, and applying cumulative knowledge of impact management. Bell 's unique progressive layering energy management system utilizes two separate layers of hard shelled EPS foam in addition to Integrated MIPS - enabling them to improve impact performance via multi-density foam and at the same time deliver a more compact overall shape, sleeker design and maximized ventilation. And thanks to a smart combination of the MIPS layer and retention system, the Z20 sets a new standard in fit and comfort. Superb fit is further optimized with the Float Fit Race retention system, featuring height and width adjustable cradles and an intuitive, easy to use tension dial, and then finished off with comfortable and sweat-wicking X-Static padding. No matter how long, hot or hard the ride is, the Z20's exacting union of comfort and ventilation will deliver. Integrated Reflectivity - Treated with a durable reflective coating under the clear coat, the Z20 Ghost glows with eye-searing intensity when hit with direct light.