Originally Posted by
fixed1313
I do have a boot dryer, works great. I have been looking at different options for boots, thanks for the links. Thinsulate is not my first choice of insulation it is just what I have at the moment.
To answer the vapor barrier question..... To the best of my understanding it is almost like a wet suit concept. You keep your insulating layer dry so it can keep you warm and then the wet layer inside the vapor barrier stays warm. I have not tried them yet but they were recommended by a friend that does long distance winter races on fat bikes. We will have to see.
Yep, to keep your insulation layer dry but not only it also prevent heat loss via insensible (and sensible) perspiration and more effects that don't really apply to feet
(insensible perspiration: perspiration that evaporates before the body can detect it as moisture)
Vapor Barrier Liners: Theory & Application
http://andrewskurka.com/2011/vapor-b...y-application/
To prevent too much sensible perspiration from happening my rule of thumb is to use
VB socks from 20F and below but it can varies with metabolism, where the VBL is used etc...