ORIGINAL: BigLouie
Once temps drop down to single digits and lower, and there is snow covering the ground with no wind, multiply those little nices by 1000! I have clothing I wear all early season that works great, but once the temps get really low it gets ridgid and noisy! It's hard to find something completely quite and very warm. Wool is one option.
Fleece is another. I have a few fleece items that stay quiet in sub-zero temps that I couldn't live without.
SaddleCloth is also a quiet material that I like to hunt in, and it resists burrs which is nice. However, if there's any moisture in it and the temps get down near that 0* mark, it does get a little noisey when it freezes. Still, it's not too terribly bad though.