Features1Made of quality PC material, the glass have good anti-impact and anti-scratch performance. 2Exhaust ventilation function, will not influence view, ensure that the glasses has good visual effect. 3Protect you from being hurt by wind, sand or dust. 4Adjustable anti-slip head strap, available for most of people wearing. 5Suitable for semi-open helmet. Suitable for cycling, skateboarding, skiing, etc.SpecificationFeatures:1.Made of quality PC material, the glass have good anti-impact and anti-scratch performance.2.Exhaust ventilation function, will not influence view, ensure that the glasses has good visual effect.3.Protect you from being hurt by wind, sand or dust.4.Adjustable anti-slip head strap, available for most of people wearing.5.Suitable for semi-open helmet. Suitable for cycling, skateboarding, skiing, etc.Specification:Condition:Material: PCColor Options: blue&black, blue&redSize(length*width): approx. 22*10cm/8.7*3.9inPackage list:1 * Goggles2 * Lens1 * Cloth bag1 * Wiping clothPackage List