1.Aniti-fog ,Anti-scratch Double PC len 2.Good adjustable system 3.Faster ... 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 ...