The visors of all Nolan & X-lite helmets are made from Lexan® OQ from General Electric. Lexan® OQ has premium optical properties & provides UV protection up to 400 nanometers wavelength. Features High-quality scratch-resistant S/R coating on both sides Preparation for Fog Resistant System (all flip-up & full-face helmets) PINLOCK Suitable for the following Nolan helmets N60-5 N64 N63 N62 Suitable for the following Grex helmets G6.1