/ Sunglass categories
I'm trying to work out whether I should get cat 3 or 4 sunglasses....
They will mainly be used in the UK and Spain for rock trips. Basically my worry is will cat 4 be too dark for climbing in UK.
Cat 3 will be fine. Cat 4 is really for high altitude and snow glare.
indeed... get cat 3.
oh, and you're not allowed to drive cars with cat 4 glasses on.
Buy something with a photochromatic lens, like the Julbo Zebra lens.
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