... PC, helmet compatible* Lens: silver coating, spherical double lens, permanent anti-fog, Impact and Scratch resistant UV protection*Foam : soft 3 layer ... fold, helmet compatible 2.silver coating, spherical double lens, permanent anti-fog, Impact and Scratch resistant UV protection.3.Adjustable Strap System4 ... hole6.Comfortable three layer Foam with velvet,Protective well, suitable for long term wearing