These toe covers are great for cold weather down to at least 40F. I have not tried them below. They are highly water resistant and easy to put on and take off. They seem fairly tough but I would avoid walking or hike-a-bike in them for extended periods.
Okay, these work where the cold wind meets the foot in cycling, the toes! Works by simply stretching over the toe of your shoes then going over the cleat on the bottom. So why did I rate them overall 4 stars? Well, hardly anything gets 5 stars, but mainly due to price. Paying for name but in the end, they do cut the cold wind off the toes for sure.