Dreamviva Anti-Glare Polarized UV400 Aviator Al-Mg Frame Spring Hinge Men Sunglasses Metallic Gray Frame Green Lens metal frame anti-reflective lens polarized TAC POLARIZED LENS provide 100% protection from UVA/UVB rays and reduce glare from the reflective surfaces by filtering light coming from different angles. POLARIZED LENSENS eliminate glare and reduce eye fatigue . Lens coloring system adds color contrast without distorting natural colors. UNBREAKABLE METAL FRAME & Al-Mg alloy design ensure a strong and stable constitution. AJUSTABLE LEGS & soft thermoplastic rubber tipped temples allow it to suit different kinds of faces and offer perfect comfort without slippage and temporal oppression. FREE GIFTS. 5 in 1 package includes all the necessary glasses accessories. Extremely convenient to be carried around and stored. We chose the best night vision lenss on the market and the new lens has a better polarized than before. New lens could filter out <span class="a-text-bold"><u>20%-28%</u></span> of refiected glare at night.(And most yellow lens only cut about 10% of glare.) 100% UV400 protection and HD yellow vision. The lens is impact resistance and enough to cope with the impact on daily (Pass the FDA Drop Ball Test) We chose the best day-night vision lens on the market and the new lens has a better polarized than before. The green is for sun, the yellow is for night. New lens could filter out <span class="a-text-bold"><u>20%-28%</u></span> of refiected glare at day-night.(And most day-night lens only cut about 10% of glare.) 100% UV400 protection and HD day night vision. The lens is impact resistance and enough to cope with the impact on daily (Pass the FDA Drop Ball Test) The best light alloy to make the frame and it will be more stronger than ordinary frame. The frame was welding with the best technology to make it more durable. The flexible spring hinge fit different size of face. Nose pad can be adjusted to make it more flexible Anti-Slip temple afford all-day comfort. The black lens give you 100% UV protection and reduce glare reflected off of roads, bodies of water, snow, and other horizontal surfaces, restore true color, eliminate reflected light and scattered light and protect eyes perfectly, polarized sunglasses cut glare and haze so your eyes are more comfortable and you can see better. Good for multiple sports, Riding Motorcycle, Cycling Bicycle, Driving, Running, Fishing, Racing, Skiing, Climbing, Trekking, Other Outdoor Activities and Daily Live.