Vachetta is vulnerable to water stains and tonal changes from the sun. This is considered a byproduct of this beautiful natural leather and not considered a defect. Use a leather conditioner to maintain appearance. This shoe is made with a 100% crepe sole, which after some time or with exposure to extreme heat, can become sticky and pick up debris. The crepe sole can also commonly flatten and become a bit more molded to the shape of your foot. This is considered a natural byproduct of this material.