Other reviewer complaints about not being polarized: true aviator sunglasses are not polarized. Screens on GPSs and many other in-cockpit devices have polarization to reduce glare - hence, if you're wearing polarized sun glasses, the screens appear black.There are literally thousands of glasses that have polarized lenses. But if you want to fly with them, you're out of luck. Posers - go find some polarized glasses. Pilots - these work.