Features1Highdensity EPS foam material is safely and helpful to decrease the impact forces of the collision. 2Using highstrength PC material, the appearance is bright and not easy to fade, making your helmet full of fashion. 3The smooth air duct design conforms to aerodynamics, which can effectively reduce wind resistance. 428hole ventilation design, scientific and reasonable hole ventilation for reasonable heat dissipation effect. 5Ultralight helmet will not cause any burden to the rider's head during the riding process, so it is easy to ride without getting tired. 65762cm/22.424.4in adjustable straps can fit your head, which meets the satisfactions of most cycling riders.SpecificationItem Type: BicycleHelmetMaterial: PC + EPSHead Circumference: Approx. 57-62cm / 22.4-24.4inProduct Weight: Approx. 360g / 12.7ozFeatures: There is an adjuster, and the size can be adjusted according to the head circumference.Package List1 xBicycleHelmet1 xAccessories