Originally Posted by MacEntyre
We've had fantastic results with lightweight canvas socks in deep cold conditions (below 15*F). They are wind proof and vapor permeable, such that water vapor passes through without condensing. The canvas sock works just like an Anorak.
Last February, on top of Roan High Knob at 0*F, with 20-40 mph gusts, I was toasty with no tarp, and just a Snugfit and a Speer Top Blanket inside my canvas hammock sock.
I just ordered one o'these from Mac. He's got a new name for the "Canvas Hammock Sock with SEEP", but I'll let him tell you what that is. I saw a couple of them deployed at the Winter Camping Symposium, and I was impressed.