Rapid EyewearPhotochromic Sunglasses for Men & Women. Photosensitive Lens Glasses for Cycling, Driving & Sports that Darken in the Sun. Black. UV400 Protection

Very comfortable and good lenses fro driving etc.

My opinion is that the glasses are too expensive, they are a kind of protective glasses, they change color very slowly

Always read negative reviews.These glasses do not go very dark at all, they just turn slightly dark, nothing like the image in their advertising.Better products out there.

I use these for golf, never fallen off and look good, the transition period from cloudy to bright sun is very quick

These work well enough, but look a bit like safety goggles.

They don’t go dark even in bright sunlight.Disappointing.

Very comfortable and light with rapid response to dark and bright. Excellent product.

Great study sunglasses.Change quickly from dark to light which is good