Lenses are all made of impact resistant PC, which can prevent the injure to eyes during sports;
Super light, high temperature resistance, high optical transparency, resistance to impact, low birefringence and UV protection;
Resistance to impact is 12 times than resin lenses, 60 times than glass lenses, can effectively cut off ultraviolet rays into eyes, 100% UV resistance, widely used in aircraft, bulletproof glass, astronauts mask purposes in the early days.