While you're riding at your mental and physical best, the GameChanger 2.0 takes care of your head climate and aerodynamics. The AirBoost air inlet at the front and the wider rear with Aero Blade provide optimal ventilation and reduced drag. At lower speed, the Aero Blade allows air to flow in and helps accelerate the wind flow inside the helmet. This creates a cooling effect that regulates head temperature on long rides and steep climbs.Aero Blade enhances wind flow at lower speeds, providing a cooling effect for temperature regulationIn sprint positions, Aero Blade acts as a streamlined surface, reducing air resistance and promoting efficient aerodynamicsAirBoost air inlet at the front increases front vent surface area by 32%, allowing more air intakeZoom Ace Pro adjustment system ensures precise helmet adjustments for enhanced comfortStability of the aero helmet is reinforced through ActiCage and In-Mold technologiesItem SpecificationsColorVelvet BlackDefined ColorBlackGender/AgeAdultHelmet CertificationsComplies with the U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and OlderHelmet StyleRoadHelmet StyleTri/TTMaximum Head Circumference62Minimum Head Circumference59Multi ImpactNoRotational ProtectionYesSizeLargeVisor IncludedNoWeight290