I just finished making these a few days ago, and thought I might show you guys what I ended up with. These down socks are sized XL (for size 13), have around 1 oz of down fill, using 1.9oz ripstop breathable fabric, weigh 3.0 oz exactly on my scale with the stuffsack. I thought about making some to sell if there is any interest. I would probably use 1.1 oz breathable ripstop from now on, so they would be lighter than 3 oz, and lighter still for smaller sizes. If there is anyone interested, let me know. I am hiking the Georgia section of the AT this week, will be back 01/09/10. Pictures below…

Down socks in the stuff sack.

Side image of socks

A little more loft than my XL Montbell Down Inner Jacket

The top goes about 6" up your leg with elastic to keep them up.
I was thinking maybe $50, compared to Nunatak's $118?

