I am about to experiment tomorrow. I want to continue wearing my sandals, so I have toesies to go over the sandals, then the Performance booties to go over everything. I also have the hydrosocks, and then thicker socks to put on under the hydrosocks. Tomorrow is supposed to be our coldest day yet, with wind gusts up to 50 miles per hour and somewhere about 20 F by the time I start out for my destination up north. I'll report back.
There are also these things called Hotbeds I got. It's some kind of insulating layer that goes in the insole of the shoe, and it's supposed to insulate really well. I will probably add those in if I still can't keep my feet warm.
Koffee