I drove home in them and I’m still alive so I guess they’re OK 😀
further observations :
– The gold lenses are slightly yellower in the middle and bluer at the edges. not really noticeable unless you’re looking for it but it is there. The very edge is also purpley. Again you’d only notice if looking for it.
– compared to a genuine jawbone, flicking the glasses into and out of line of sight, the movement/distortion is approx double on the fakes. That sounds bad but again, I didn’t notice it while driving and since the genuine ones distort very little, it’s still quite small.
– Genuine lenses only just fit in the fake frames. The genuine lenses are a fraction bigger and it’s quite a squeeze to get them into the fakes and there is a 1mm ish gap once closed. There’s no noticeable extra distortion though compared to the genuine frame. if you bought the fakes and a set of genuine lenses (40ish quid on classifieds) you could easily enough gently file them to fit properly though.
– you can’t undo the “jawbone” on the genuine frame – or at least on mine as unscrewing the torx bolt broke it… superglue to the rescue 😕
so in summary the fakes are great for the money but don’t imagine that they’re the same as genuine ones.