1.PC frame 2. Aniti-fog ,Anti-scratch Double PC len 3. Good adjustable system * Adult fit* Frame : soft TPU, helmet compatible ,antomic* Lens: silver coating, spherical double lens, permanent anti-fog, Impact and Scratch resistant UV protection*Foam : soft 3 layer* Strap :adjustable DEX strap . faster release buckleFeature1.Soft PC material ,free to fold, helmet compatible ,antomic 2.silver ...