Sandals with 0 to 3 pairs of wool socks depending on the temperature. I wear large socks, so the outer layer is XL to keep from getting too tight. The sandals adjust with Velcro in three places to allow them to fit just right no matter how many layers. If 3 layers is not enough, then a windproof shoe cover over it all.

And waterproof socks for when it is too cold to get wet.

Very versatile, allowing for a cold ride in and a warmer ride home.