p>The best way to care for your Ermenegildo Zegna sunglasses is to clean them with a microfiber cloth rather than any ordinary fabric. However, if you have oil or grease on your sunglasses, the best way to clean them is by rinsing them with water and applying a specialized cleaning solution or dish soap. Rinse it again to wash away the soap or solution. Let it dry before wearing it or clean it with a microfiber cloth.</p