Using these insoles is easy. Just take out the existing insoles from your running or walking shoes and place these Superfeet insoles in their place. Make sure they fit properly and are aligned well. When it comes to care, you can clean them with a mild soap and water when they get dirty. Let them air - dry completely before putting them back in your shoes. Avoid exposing them to direct sunlight for long periods as it might damage the materials. And remember, if you feel any discomfort, check to see if the insoles are correctly positioned in your shoes.