Known for their exceptional sunglasses, Bolle has also made a name for themselves in the realm of cycling helmets and their The One Premium is their super-versatile, top-of-the-line model. Regarding fit, Bolle utilizes a Click-to-Fit retention system that makes it an easy endeavor to achieve a precision fit. The helmet's 31 vents do wonders to keep your head cool, but Bolle has also provided removable aero shells in the event you'd prefer aerodynamics to take precedence over ventilation. The One Premium helmet has a range of other impressive features, such as a sunglasses garage for secure storage of your eyewear, an integrated (and removable) safety LED light for enhanced visibility on the road, a removable visor to help keep glare and the elements at bay, plus a winter lining to convert the helmet for comfortable riding in the event of cold weather. Click-to-Fit retention system makes for easy adjustments to achieve a precision fit 31 vents for cooling airflow Removable aero shells to fine tune helmet for aerodynamics Integrated safety LED light with 2 light modes (flashing or continuous) Sunglasses garage provides a convenient means to hold sunglasses Winter liner adapts helmet for cold-weather riding Removable visor