Using these Merrell men's slip - on mocs is a breeze. Just slip them on like you would any other shoe, and you're ready to take on the winter. For the best performance, make sure your feet are dry before wearing them. When it comes to maintenance, after walking in wet or dirty conditions, wipe the shoes with a damp cloth and let them air - dry away from direct heat. Avoid using harsh chemicals on the leather upper as it might damage the waterproof and salt - resistant properties. Also, check the Vibram® Arctic Grip™ outsole regularly for any signs of excessive wear. If the insole gets dirty, you can remove it and clean it gently. And remember, these shoes are designed for winter use, so don't wear them in extreme heat or rough non - winter terrains.