1.PC frame 2. Aniti-fog ,Anti-scratch Double PC len 3. Good ... * Lens: silver coating, spherical double lens, permanent anti-fog, Impact and Scratch resistant UV protection*Foam : ... . faster release buckleFeature1.Soft PC material ,free to fold, helmet compatible ,antomic 2.silver coating, ... velvet,Protective well, suitable for long term wearing New style popular 2012 anti-fog protective snow glasses ...