I lucked into a deal at my LBS. They had a pair Shimano MW80's someone else ordered and never picked up. After few hours at zero degrees with regular tubesocks ,I had toasty toes and the control only clipless pedals can offer in snow. I think wool or thermal socks would work well to -10 below, but it's not been that cold yet. Need to upsize your shoe size tho, I always wear 44's and these 45's fit great and with a sharpie marker you can cover up the shimano easily. Not to mention how fab they'd look with your wetsuit. . .Layering doesn't work for you?