Shamma Sandals are high quality sandals that will last through almost any condition! That being said, you may want to clean or care for your sandals from time to time, especially after those intense trails. For UltraGrip sandals, we recommend washing the sandals with cool water, and only if needed, a mild soap. Air dry the sandals in a place of moderate temperature, making sure to keep the sandals out of direct heat, sunlight, or steam.For leather sandals, we recommend using Lexol Leather Cleaner + Conditioner. For cleaning instructions, please see container. Please note- As with most materials, when our sandals are stored or placed in intense temperatures and conditions, there is a chance that they can lose their integrity or shape. Conditions such as direct sunlight, heat, cold, steam, or prolonged moisture may damage the sandals. These conditions are nothing to worry about when you're wearing the sandals- only if you store the sandals in any of these conditions or leave them in any of these conditions as part of the cleaning process, there is a chance they could be damaged. We recommend keeping your sandals in a dry, moderate place away from extreme temperatures and weather conditions.