Using these Tifosi Vero sunglasses is a breeze. Just put them on like you would any regular pair of sunglasses. The adjustable ear and nose pieces allow you to customize the fit according to your comfort. They're great for outdoor activities like running and cycling. When you're done using them, always put them back in the included case to protect them from scratches. For cleaning, use a soft, lint - free cloth. Avoid using harsh chemicals as they can damage the lenses and the frame. If you notice the rubber parts getting dirty, gently wipe them with a damp cloth. That way, your sunglasses will stay in great shape for a long time.