After a base and mid-layer I just add a light insulation layer. I use the Arc’teryx Atom. Then add a more robust puffy for when it’s real cold. I use a Kifaru Lost Park. I do keep a light rain jacket in the pack. Don’t think I’ve ever worn it. I used to use a shell, the Kuiu Guide DCS, but don’t think it really does anything useful.
The Jetstream and the Arc’teryx atom look as they are pretty similar in what they do.
Am I right on my thinking ?
