I currently have a Patagonia R1 & Mirco Puff. I’m a touring musician and frequently hike wherever I end up. My R1 and Micro puff keep me warm to around 30 degrees. I generally wear Capeline 1, 2 or a Smartwool 150 weight as my base layer.
Trying to keep the size down as I carry on my luggage. Weight (or price) is not a major concern.
Any suggestions for a warmer combo? Looking for something that can keep me warm down to single digits.