This is the second time I buy this model, it is very waterproof, no water gets in, and it doesn't fog up in the first few weeks if used continuously, hopefully for a couple of months, but this design is quite comfortable and fits well to the contour of the face. The quick-release "clip" system is not bad even though I barely use it and don't consider it necessary. The glasses arrived quickly but were very poorly packaged though without damage. It would have been nice to receive the glasses in a small plastic container case, but for the price you can't ask for much more. After using them in the pool, I will add additional comments.