Thank you for reading. I think you can wear your new shoes without getting them dirty if you use these. Regardless of the color of the shoes you wear, they will give you white feet, which is a modern trend. In my personal experience, they don't provide the warmth of even thin, winter-weight Lycra material, but I use them in the summer to protect my new shoes. I also use them during the day in the winter. I am selling a spare pair. I only tried them on once, sitting on a chair indoors. If anyone is interested, please let me know. Santic cycling shoe covers for road bikes, waterproof, stretchy, lightweight, spring/summer/autumn (White, M size/EU40-43)