Ok here you go. Take out the inserts and use a spray and wash product on the inside. Tie the shoes and put in washer along with inserts that are loose. Add 2 or 3 towels into the wash also. This reduces noise, washer negative impact, and helps clean the shoes. Once finished, put shoes in the sun along with inserts to the side, to dry. I have done this many, many times. Do not put in dryer. Voilá!