I considered these for running but had concerns for wearing such big glasses. I ultimately said screw it, I need the coverage because I have pterigium in both eyes from being on the water/beach and running without any shades over the years. While these are not polarized, the lenses do a great job of blocking sun and the field of vision (because the lenses are so big) is awesome. I don't see frame just landscape. Little wind sneaks around to my eyes when I'm running yet they aren't so close the lenses fog. They are light frames so they are pretty unnoticeable for big black glasses on my face. Love them.