Here’s the thru-hiker down quilt kit that I was able to put together only after hours of conceptualization and much help from two very patient and supportive seamstresses.
It weighs only 22.3 ounces which is exciting because it helps bring my base weight under 10 pounds. It should keep me warm on the PCT as I hike north from the Mexican Border near Campo, California starting March 25th.

Still the lightest, most compressible insulation for its weight! When will materials science catch up with nature?
Things that struggling with this quilt led to:
-a somewhat less foggy understanding of the “footbox”
-a philosophical discussion regarding the definition of a mummy bag versus a quilt (there are numerous, definitive differences)
-a bathroom filled with down
-clothing filled with down
-lungs filled with down
-a quilt semi-filled with down