Overshoes
Overshoes (or "booties") are flexible waterproof shoe coverings for use in wet weather. They are typically made from rubber or a stretchy synthetic and have a zip on the inside of the ankle. The fabric continues under the sole but is not intended for walking on, which would wear it out quickly. Most overshoes have a hole in the sole for clipless pedals. Overshoes are not to be confused with cleat covers. Overshoes go on the top of the shoes, while cleat covers go on the bottom.
Read more about this topic: Cycling Shoe