I had about a 4 hr sit with snow that melted once it hit something. It rained down from the tree I was in the whole time. when I got back to the shack and took the jacket off, the whole exterior was wet and the whole interior was dry. I had a down jacket under the puffy and there wasn't a spot of water on it. I know its not a rain jacket, but I was very impressed with the jacket on that very wet day.