Setting up your Nike Calm Slides is as simple as slipping them on. They are designed for immediate comfort and require no break-in period for typical use. These slides are compatible with a wide range of casual attire and are best suited for warm weather or indoor environments. To care for your slides, simply rinse them with water if they get dirty, especially after use in sandy or wet conditions. For more stubborn dirt, gently scrub with a mild soap and a soft brush, then rinse thoroughly. Ensure they air dry completely before storing. Avoid prolonged exposure to direct sunlight or extreme heat, as this could potentially affect the foam material. The product description emphasizes 'foam' and 'water-friendly design,' which indicates the primary material. While 'Leather' is listed in attributes, it is likely a misattribution for this specific product or refers to a very minor trim not central to the slide's function, given its quick-drying nature.