Being Scottish we are a decent reference point for sweaters!
I have a really good Callaway half zipper that is really warm, comfortable and moves freely.
If buying on line, bear in mind that Callaway seem to make their clothing a size too big!
Agree with the poster mentioning Galvin Green, but Mizuno for me also manufacture some top quality outerwear.
Try it on first though. I also have a DryJoys rainsuit that has served me very well. Worth remembering too that you do...