Using these New Balance 1080V13 shoes is easy. Just lace them up and start your run or go about your daily activities. When running, the rocker profile will help you have a smooth step - by - step movement. As for sizing, keep in mind that the 6 mm drop is approximate. Before wearing them for the first time, make sure the shoes fit well to avoid discomfort. For maintenance, clean them regularly. You can use a soft brush and mild soap to clean the mesh upper and rubber outsole. Avoid using harsh chemicals as they might damage the material. Let them air - dry naturally instead of using a dryer. Also, store them in a cool, dry place when not in use.