I owned River West before Sitka came out. I still have my RW, but I will not put the RW on unless it's pouring. I don't sweat but still got wet from the inside. And it took a long time for the RW to dry just on the inside so you can put it back on in the morning. I'm not bashing the RW. They're great for waterproof. On the other hand, I know the Sitka that I had were not advertised as waterproof. If I have the Sitka on and it's pouring, I expected to get wet. But it hasn't happen yet.