S2H winter class 2026 observations and lessons learned

Looking for a bit more feedback on the Atlantic Rancher sweater. I’m a bit torn, looking for a piece to layer over a woolnet base.. just concerned about breatheability of the piece, especially during any exertion and comparative to a standard/modern active insulation piece? Thanks in advance!
Is there a specific modern active insulation piece you're wanting a comparison to?

"Active insulation" is a pretty broad spectrum nowadays.
 
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