How to use: Just lace up these shoes and you're ready to go. They're great for long - day work or athletic activities. Note that although they're highly resistant to many elements, avoid extreme conditions like direct contact with extremely high - temperature sources or very strong corrosive chemicals. For maintenance, clean the shoes regularly with a soft brush and mild soap. Let them air - dry. Don't put them in the dryer as it may damage the materials. Also, replace the insole if it loses its cushioning over time to keep the shoes comfortable.