I find pit zips are awesome.

So I got a couple hunting jackets with them and Gore and they work awesome for biking! Problem is they are camo or drab and not high viz..... i do have one blaze orange Gore hunting jacket and I’ll wear that one if conditions are right.

Another good jacket I found when it’s not too windy is my heavy wool pullover. It breathes the best while keeping me warm but won’t do well for the heavy winds.