1.PC frame 2. Aniti-fog ,Anti-scratch Double PC len 3. Good adjustable system * Adult fit* ... coating, spherical double lens, permanent anti-fog, Impact and Scratch resistant UV protection*Foam : soft 3 layer* Strap :adjustable DEX strap . faster ... lens, permanent anti-fog, Impact and Scratch resistant UV protection.3.Adjustable Strap System4.Square Design5.Air hole6.Comfortable three layer Foam with ...