I recently purchased a KOM wool shirt on the fire and a Silent Predator Vest at the Harrisburg Show.
I’ve looked at a SWANNDRI HOODED .BUSHSHIRT for years and curious if anyone has had experience with them.
Considering a SP APEX jacket or BUSHSHIRT, keep my bony old butt warm!

You might try looking at WeatherWool. They are like armor against the cold. I really like their anoraks.