Works great outdoors for highlights and shadows. Polarization is a must in any pair of sunglasses, and it effectively redistributes incidental light. My negative comments relate to the bifocal part itself, which is too low in frame for me. It forces me to lift my head up and back to see or read up close. It might sound trite, but when you're sweating in the desert trying to read an app on your phone, it becomes a real problem. I would recommend this product but only considering the above regarding lower placement of bifocal lenses.
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