"No hour of life is wasted that is spent in the saddle" -Winston Churchill
EMS X-Static sock liners. Ok, I've never worn these on the bike, but I wore them today with steel-toe boots, and my feet were soooo comfortable- not too hot, not too cold, and not sweaty! It was windy and in the mid-40s. Steel toes suck the heat out of your feet, and my toes would normally be freezing by the end of a day like today.
Can't wait to try these on the bike with my winter boots and wool socks!