I bought this product prior to a mountain hiking vacation, out of caution over poor weather.  And, as is often the case in alpine environments, the weather was unpredictable.  I hiked for over two full days in cold rain with the Patagonia jacket, at times in a downpour, and I'm happy to report that it kept me dry and happy in an environment where I may have been at risk if it had failed in its job. I've since used it more frequently at home, and I love its ability to keep you dry in wet weather.  On top of that, I happen to think it's a very nice looking jacket as well.