I guess you'll just have to see how it does. The polypro stuff I'm talking about is thicker than just a t-shirt. When I first sit in the morning, I am wearing insulated bibs and coat. When I am ready to still hunt, I take the jacket and bibs off and am hunting in my BDUs and t-shirt (with the polypro base layers), which I am already wearing under the bibs and jacket. But I am sure it's colder where you are.

The poncho can be noisy when it is dry. When it is wet it is not noisy at all, and obviously the sound of the rain dampens most quieter sounds. I am not saying the poncho is the best, I am saying that I have a few and they work for me, but I would PREFER to have a rain suit like I listed above.