I’ve had the dehavilland since it came out, just got in axis in to try - only keeping one of them. A few notes to compare. Sorry I haven’t had the Sitka jet stream or I would compare for you, hope this helps others:
- axis and SG about the same noise wise.
- length wise they are the same in front, but the tail is 1.5” longer on the SG jacket.
- Kuiu is a touch lighter, but feels more substantial/thicker. It is noticeable in the wind what the hybrid paneling does for you on the Kuiu jacket. Holding up to light, the non-membrane parts of axis you can see light through, but I would say the SG jacket is generally a bit thinner fabric, meaning a little less brushed fleece.
- hoods nice on both, axis jacket hood fits closer.
- body is about 2” wider in axis, yet the arms are a bit skinnier from elbow down. That said, the axis has more room in armpit area. Put zips are perfect fully placed on the axis, smaller zipper bodies than the SG.
- SG fabric is very stretchy, but the axis is also surprising how much give it has.
- both are built to go over mid layer fleece in my measured size, not getting more than a mid layer under either, which makes sense for their application. Less “slop” in SG jacket body, but it gets tight at the bottom because it is longer.
- I can do a cold weather run in the SG jacket die to cut and fabric, but I think that would not work out well with the Kuiu axis.
- Lastly, both have great collar designs. The stone glacier one is a little more rough inside - they fabric weld a really nice smooth section to inside of axis collar that is next level comfortable.