These are a combination of 3oz climashield insulation, a nylon taffeta from aliexpress, and a little bit of bug netting as mesh. At 188g or 6.63oz, these are INSANELY WARM for their weight. My goodness.
These are mostly in camp pants but if it’s cold enough you can hike in these comfortably. These will breathe as well as any MYOG insulated pants can with this sort of insulation. I have hiked in these in cold temperatures comfortably.
Next time I’d use a thicker mesh on the sides, make them a tad taller, and add an elastic waist band.