I always hunt in light rain or snow because the deer usually move in it. On the other hand, deer are like people in that if it is a thunderstorm or downpour they won't come out. They will just hunker down in a thicket somewhereand wait it out. A reasonfor this is that their senses are hindered in a really heavy rain. Their hearing is lessened because of all the noise, visibility is less, and heavy rain/ swirling winds make it difficult to pinpoint danger. I have Cabelas rainsuit and I find it works pretty well, just be careful not to overheat. I usually hunt in a light drizzle that can usually be taken care of with a suit made of saddle cloth, at least until I get where I am hunting at. This prevents me from overheating on the walk, but keeps me from getting soaked on a long sit. Breathabilty would by my primary concern in buying a rainsuit.