Professional special hardening process, without the slightest temperature difference. Lens coating after with anti UVA (UVA), UVB (ultraviolet), UVC (short wave UV) 100% functional. Single PC lens, vacuum coating the surface of the lens with scratch, compression, anti-shock, anti-UV, dust and other features. Large soft face seal, so very comfortable to wear Wide screen can block strong winds, snow grains and various glare. Ergonomically designed, the gap ventilation, no metal accessories safer, with excellent flexibility performance, any kneading, not easily deformed.
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