You can go off the description but even the most basic clear plastic lens will stop ~90% of UV. Polycarbonate will do 99.9%, is cheap, strong and shatter resistant so normally used for sports glasses. All the ones I bothered testing took a 5mw/cm² UVA light level down to registering 0.00mw/cm², UVB & C also registered zero. The only advantage of the more expensive lenses is that they in theory should offer less distortion, but I can't tell the difference.
Thanks for this post ! Usually the discussion drifts into "what's about UV? You will definitely get blind with this glasses!"
Additionally IF someone won't trust the fact, that Polycarbonate is super cheap and just brings the UV filtering naturally..... there's always the option of checking that in a store.
For the glasses:
Kapvoe and SCVCN are by the way the same company.
I have glasses from both, they are very comparable ,despite the designs are different.