Thermal T3 Bootie
When the weather is at it's worst, the Thermal T3 Bootie will be your go-to to keep your feet warm. Made from a technical, insulating material that stretches over the shoe for a perfect fit.
These low-key shoe covers work very well here in Ohio for sub-50 degree riding on windy, often sunless winter days. They are fitted -- extra space on shoe covers catches on your bike and is not as warm. They are "just right" on manipulatibility -- not spandex but not fixed overshoes; it takes intentional effort to get them on then they just stay in place out of the way keeping you warm. I was rotating them with an Italian-branded competitor but keep going back to these.