Bests & Worsts Reviews from Amazon

I've worn these with Muck boots, and Gore-Tex boots. I've worn them in 40,30,& 20 degree weather. I've worn them with/without foot heaters. Bottom line, they DO NOT meet the expectation that they boast. As someone who hates cold feet i figured i'd give these a try, needless to say my search for something to keep my feet warm continues. My next purchase will be battery operated heated socks, which i will review once I've "stress tested" them adequately.