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Fitovers for me.
They work really good, especially for side interference.

One easy experiment to show polarization,
is to get 2 pairs, put the lenses over each over, but rotate 1 pair 90 degrees.

2 on top of each other is dark, but crossing them should be darker.
The effect of crossing the "polarized" lens should be almost black.

Think of window blinds.

One vertical, the other horizontal.
Cross them and the light almost goes away.

This effect is greater than just topping one over the other.

Just my 2 cents..
Sometimes reduced side glare is an added benefit.
Many pairs are form fitting that provide that reduced glare.
Vs. a pair that is polarized but allow side light.
I think the effectiveness is better than big money.
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