Designed for time trials and triathlons, this helmet combines cutting-edge aerodynamics, premium optics, and race-day comfort in a high-performance package. Its removable front vent cover lets you switch from maximum aerodynamic efficiency to increased airflow in seconds, giving you total control over speed and ventilation. No compromises. Every element of the Velo TT has been precisely engineered. From its revolutionary Prizm™ tapered lens design, which widens your field of view, to its shell shape optimized to minimize aerodynamic drag. Pair it with Oakley’s advanced TurboDry™ fabric for superior moisture management and a redesigned 360 Fit system for all-day comfort, and you’ll have a helmet that’s as fast as it is functional.