You guys with polarized lenses ought to do a little research. Polarized light is a reflection ususally off water or roadways. When looking up at the sky the only thing that will reflect light is your plane and that is not for very long at any given time. Much more important when selecting lenses for flying should be 99 or 100 percent UV filtering, large enough not to let light around the edges and a color that works best for you. I like amber (or brown) because I think it gives the best contrast to see a plane in the sky.

Save your polarized lenses for fishing.