Yellow Lens Aluminium Magnesium Anti-glare Night Vision Polarized Driving Sunglasses Composite frame plastic lens polarized Visible perspective rate: 99 (%). / Anti-UV level : UV400 100% UV protection . Lens Material : Tac Hardforced Polarized lens / Frame Material: Aluminium Magnesium Alloy Frame 100% Brand New & High Quality. / Quality?Super Quality A+ Attn: Don't use alcohol or any other chemicals to clean the lens, to avoid surface broken. And don't maintain the sunglasses in such bad environment of high temperature or long time damp. Thanks!