belly-deep
WKR
- Joined
- May 23, 2012
- Messages
- 707
The Kuiu Kenai and Sitka Kelvin Light are the same weight, with very similar fills, so it seems pretty fair to compare them. The Toray insulation used in that jacket (and the patagonia nano air) are claimed to have a higher warmth to weight ratio than primaloft silver. Sitka advertises that jacket as having breathability from the stretch side panels.
The regular kelvin is 10oz heavier, but would seem to be more comparable to the Kifaru puffy.
If nothing else, it goes to show some of the lighter insulating pieces need to be paired with something else to stretch deep into the winter. I'd rather add a thinner down layer to a sitka kelvin light or the kenai and have some flexibility to use either or both together vs. Just having 1 heavier jacket, but that's completely based on how I do stuff.
Yeah, I guess if you're using weight as the sole criteria and not manufacturer's intended use, that would be the correct comparison.