To use these insoles, first take out the existing liner from your roomy women's shoes. Then, place the insoles in the shoes and trim them according to your shoe size. When wearing, you'll feel the structured support and energy from the foam pad, which helps reduce body stress during high - impact activities. As for maintenance, you can remove the insoles from your shoes regularly and let them air - dry. Don't machine - wash or expose them to direct sunlight for a long time, as this may damage the foam and the structure of the insoles.