Read an old book from the 60's that tells how to dress warm for waterfowl hunting. What it said is still true today imo.
For long underwear nothing is better than polypropylene. The old school polypropylene was very soft, thin, and warm. Used to be able to get Duo-Fold brand or Morgan brand with poly inner and cotton outer layer. Those were very good but not available anymore. The new poly long underwear is nowhere near as soft and doesn't stay new looking very long but it is very warm.
Wool is the best for your next layer. Get some wool pants. Find a nice wool shirt you are comfortable in.
Next you put on your waders and a waterproof camo shell or if it's dry use a drake pullover that's camo like the LST.
I use my Drake pullover most of the season.
You may be wondering why the wool and poly? It keeps you warm even when it's wet and dries quickly as well. You just plan on getting wet from a dog shaking or whatever. There is no such thing as waterproof in a duck blind.
Style don't matter either when all you care about is warmth and comfort.
(year old thread bumpage)
AB strikes again.