How well do chemical foot warmers work? I had a lovely 16 mile ride this afternoon - which currently seems to be the limit that my tendons will allow before they start complaining. I do have shoe covers that IndySteel loaned me to check out, but they do not fit on the shoes that I wear with my BMX pedals.

The temps were in the mid-40's when I started the ride, so I assume the wind-chill was in the 30's somewhere. My gear seemed more or less warm enough, though I don't think I want to wear those leg warmers for much lower temps than today - going to have to get some real cold-weather tights. What REALLY got cold today was my feet.

I didn't realize how cold they were until I went to stop before crossing a quite busy street on the way home and couldn't seem to move my feet quite fast enough and had a slow-motion tip-over. Right into the grass so that was ok. Soft landing, nothing bruised but my pride. I had on smart-wool socks + hiking shoes that worked great with my BMX pedals. Can't even blame my SPD pedals for the fall over

So - to my original question - will chemical foot warmers do the trick? I assume they are worn between the sock and shoe and not against my skin. I think if I were to try and wear two pairs of socks that would cause other problems...

Nice ride though - and only had 1 solitary twinge in one tendon the entire ride, the other tendons and muscles appeared quite happy