Instructions for use: 1. The insoles that came in your shoes are probably removable - take them out first. 2. Place orthotic into shoe, fabric side up, to test for size. If needed, trim the orthotic along the outline (on bottom of orthotic near the toes) that matches your shoe size. 3. Ensure that orthotic lays flat against bottom of your shoe, especially in the toe area. If it doesn't fit without bunching, continue to trim as needed. 4. Replace the orthotics every six (6) months or at the first signs of wear.