How to use: Just slip your feet into the shoes easily thanks to the convenient zonal knit upper. Tie the laces to get a proper fit. When you're running, you'll feel the great cushioning and support from the CloudTec® midsole and dual - density Helion™ superfoam. Attention: Don't wear these shoes for activities other than running on roads or in the city, as they are specifically designed for that. Also, make sure your feet are clean before putting on the shoes to keep them fresh. Maintenance: After each run, let the shoes dry naturally in a well - ventilated area. You can use a soft brush to gently clean the dirt on the surface. Avoid using harsh chemicals as they may damage the materials.