13 barn owls in a trenchcoat@dantescanline I usually go to specialist review sites, as most of them still commission reasonably knowledgeable humans for this shit (sometimes including me, if I need the cash).
This has some stuff about non-polarised glasses, and Petr is a real person whose buying guides of other things I've found helpful.
https://www.cyclistshub.com/how-to-choose-cycling-sunglasses/
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