Super quality, the glass does not evaporate and super darkens but, for example, in dark places it does not darken with nothing visible, which is a plus for this glass. Fast shipping, no problem super contact with the seller.
Glass for me is ideal compromise between full dark as the windshields of the hearse and transparent combination of slightly dark blue will do the test when riding in the light sun and in the evening as it gets darker and the eye does not get tired trying to see details, the quality is adequate as it should be although there were scratches, abrasions, etc. I think it's a matter of terrain on which I ride because other goggles have the same thing, so it's cool, with the fit is also no problem flexible fits perfectly into the frame 100% recommended. Good visibility slight reduction in sunlight at the turn of some 10-15% relative to the usual.
Very weak, you can see badly through them somehow strangely distort the image. I don't use because of the above - I'm definitely now going to find out hard how the image is before buying any rips.