Agstum Fit Over Eyeglasses Frames Polarized Night Driving Flip up Sunglasses Goggles

Frame Material:Plastic
Lens Material: Polycarbonate
-This polarized sunglasses specially designed for wearing over prescription eyewear, It easily clip on over your regular glasses.
-It is suitable to be a regular night driving sunglasses if you don't have prescription eyewear.
-The new and improved lenses reduce glare and feature UV filtering that provides a superior image when navigating dark roads or facing oncoming headlights.
-These sunglasses feature UV400 Lens Technology, absorbing 100% of harmful UVA and UVB rays. Reduces glare.FDA Impact Resistant Lens.
Free zipper Case Included with micro fiber cleaning cloth to help protect your glasses from dirt, fingerprints and from breaking
Package included:1x fitover sunglasses,1x cleaning cloth,1x zipper case

How do I know if mine are polarized?
Very easily done. hold a pair of known polarized glasses in one hand and the glasses to be tested in the other. Hold one in front of the other so that you are looking through both at once, and then rotate the glasses you're testing 90 degrees in either direction. The polarized night vision lenses will go darker,they don't change to black like the sunglasses,and you can still see through them,because the yellow night vision lenses are used at night,grey or black polarzied sunglasses are dangerous for night driving safety.

Please kindly note polarized sunglasses is different from polarized night vision glasses. Polarized sunglasses like gray or black color lens would not be compared and used for night driving because it will darken the vision even it can cut the glare,which is dangerous for night driving safety. Night vision glasses will balance the polarized and vision,which can cut the glare from headlight and increase brightness.