I'm a poor college student bike commuter. Even with thick wool socks, my feet were freezing about a mile or two into my commute every day. I ordered these and, while I waited, I'd cover my toes with the corners of plastic bags (cyclist or hobo? You be the judge).

Then these came. Even when they're wet from snow and slush, they do a great job of protecting my feet from the cold. They're stretchy, and they fit over pretty much any shoe of mine. Unlike some shoe covers, there are no zippers, and there also isn't a hole for cleats. Luckily, even on my racing bike, I have cages, so these are perfect for me!

Now, whether I'm commuting or training, I bike happily with toasty, aerodynamic feet.