Originally Posted by cyccommute
The sole of any shoe does a lousy job of insulation and when you put holes in the bottom of that shoe, the insulation just gets worse. Put tape on the inside of the shoe over the holes for your cleats (if you are using cleats). Then get an insulated insole for your shoe (there's a product out there called Thermofeet that looks interesting).
I have just made a quantum leap in foot comfort with a clever twick to insulate my foot from the SPD cleat. I put the waterproofing sticker that came with my new shimano shoes. Then, I took *these* out of my high heels and put them in my cycling shoes:
Scholl Party Feet Gel Cushions
They are made of the same clear gel as my new Fizik bar gel pads that came with the tape. Works great.