Rab Nuetrino has been warm at -32C and its very light/packable

If yer ^^ freezing it means its time to put on the big fucking puffy

For touring I start from the P-lot with a light puffy over a light soft shell ( Marmot neo shell or Patagucci R1) with a base...

IME a super light merino T-shirt is the only layer that needs to be wool CUZ it will be next to your skin where you need the anti stink capabilitiy of wool, a super light merino T will also be...