I was under the impression that these were prescription swimming goggles. Otherwise I would not have bought them to be perfectly honest. They seem like descent goggles. The strap at the back seems particularly durable. I haven’t used them in the water yet so I can’t speak on that but they seem fine. I got the black ones and they have a mirror finish- you can’t see your eyes through them. I have a particularly big head/face and they fit- obviously they aren’t especially fashionable but when have goggles ever been? The shape is a bit odd; the sides of the goggle extend and the nose bridge looks a bit chunky. Again, I wouldn’t have bought these if I had known that they are NOT offered in prescription.