The Capo Piemonte Wind Bootie solves your frozen-foot dilemma. Slip it over your kicks and be prepared to actually still feel your foot in two hours. Constructed using WindTex material, the Piemonte Wind Bootie is here to do one thing—protect from the elements so you can get on with your training.
I don't get cold that fast, but found that at the end of an hour long ride my feet where getting extremely cold in 30 or colder weather.
I was using the capo sock shoe covers and wanted something for the colder times. These work really well for me. My feet stay warm but not to warm that they sweat.
I'm a big fan of the open bottom, let's me walk around without a problem.