Clean with a damp cloth if necessary. Please do not bleach, tumble dry and iron. Most of our products are treated with a durable water repellent (DWR) finish on silicone base. If the water sits on the fabric and that section begins to darken slightly, water is making its way to the fibers and wetting them. It's time to revive your DWR finish by using a common spray based on silicone. Same goes for our waxed products, just apply a wax finish.