So my latest quilt is a karo step with a good amount of down in it (I already forgot how much). Fabrics are membrane taffeta from RBTR on the inside, and robic 7d on the outside.
I’m really happy with the warmth per weight, but not so much with the comfort. I found that temperature regulation was a lot tougher to achieve than with my montbell down hugger, even though I was using a quilt.
I’m not sure how much of that was the robic versus the membrane, but it has definitely peaked my interest in making a quilt as breathable as possible.
I’ve done quite a bit of googling and found very little – the only promising lead is Nobul1, which has mixed reviews when it comes to it’s level of downproofing. But are there any options that come into play if I consider heavier fabrics (maybe up to 1.0oz per square yard?). Has anyone used calendered HyperD and can compare it to Membrane or to the Nobul1 in terms of breathability?
Also I’m assuming that nanoseeum is only downproof enough to keep down in baffles, not as a shell.
As a bonus, I may make this quilt on the bias with a slight zig-zag stitch on the baffle seam line, to get the same stretch effect as the Montbell bag.
