A full commitment to speed and efficiency means never having to compromise. That’s the idea behind Bell's Star Pro Shield, a game-changing aero road helmet that gives riders the power to optimize performance on the fly in ever-changing race situations. Switch from full ventilation on climbs to wind-slicing aerodynamics in the sprints and flats. With its groundbreaking Active Aero technology, which can be engaged with the simple slide of a button, the Star Pro is engineered to be super fast AND super comfortable. And it comes with a removable tinted eye shield so you can ditch the sunglasses.