I know the heated insoles are expensive.. saw them listed on the new items for TE. I've tried all kinds of different things to keep my feet warm during the winter and still suffer with the cold feet. A biking buddy recommended getting off the bike and walk a short distance to get the circulation back into the feet, which does help some. I've used the chemical packs also and it seems like they get hard and crunchy under the toes after a while, and need to be taken out of the shoe, to reactivate the warming again.. I really don't want to spend that kind of money for the insoles but Christmas is coming up. They have a nice description of the insoles on the TE website. Apparently they keep the toes consistently warm up to 100 degrees. But I do agree,, they are expensive.