Quote Originally Posted by otter46544 View Post
Instead of down booties how about reflectix booties. Just a thought. Might work.
Think... sweat lodge.

It may work, but you might not be pleased with the moisture. Feet especially like to breathe - and can end up with some nasty fungal issues if they don't get enough air.

With the right temperature, conditions, and with a short time frame of use you may find it does the trick. Just be aware of possible problems.