Depending how cold where you hunt, check out silent predator wool coats or their vest with a King of the MOuntain wool shirt this pretty heavy.
I have been layering with a KUIU base layer, wool top i got from the silent predator rep in NY, then a Johnson Woolen Mills wool shirt. I will wear a KOM wool shirt or KUIU down jacket if it’s cold. Yesterday I wore the down jacket instead of the wool shirt coyote hunting. It was 23 degrees and felt like 14 with the light breeze.