This innovative helmet sets a new standard in comfort and fit: Sphere Fit BOA®. This patented fit system wraps around the wearer's head like an adjustable beanie, offering a homogenous, snug, and comfortable fit when adjusting the size. After all, this increased comfort and fit also adds to the extraordinary impact performance and safety of this helmet. The Adjustable Ventilation assures the perfect helmet climate in all conditions, which rounds off the many features of this modern, sporty helmet.