I’ve ran in it, not much for feedback besides that, just not enough use yet. I haven’t used the Sitka core lw so can’t help there, sorry. I have used the previous gen core lw polygiene treated stuff, and I agree, I could stink it up in a day.
For the guys wondering about what the cirque jacket compares to - my earlier post covers that a good bit. For those comparing to Kenai - insulation is greater in the SG piece, not body mapped, and the Toray face fabric on the Kenai seems more breathable (ie higher cfm rating). I don’t know that for sure, basing that on wind resistance. Now I totally don’t know for sure, but this sure seems like what they might have used based on the description:
https://pertex.com/equilibrium-2/
What I do know and will emphasize again since there’s the comparison questions: this jacket is warmer than a lot of the hunting companies are doing for synthetics. Not mapped and more insulation than the uncompahgre puffys, can’t remember if I made that comparison earlier.