No, I've never tried them. I have had problems with cold feet for years, whenever I'm sitting still for a while. I've tried different boots over the years. I've got 2 pairs of Rockys, one 800 gram and one 1200 gram. The 1200's are not bad as far as warmth but, they weigh a ton and are super bulky. I guess you have to put up with things to keep a little warm. I've got a pair of battery socks that are ok too.