Using these sunglasses is a breeze. Just put them on like you would any other pair of sunglasses. When you're out on the road or trail and the lighting changes, you can quickly swap the lenses. To change a lens, simply use the magnetic - clip design of the Smith MAG system. Hold the new lens up to the frame, and it'll snap right into place. When it comes to maintenance, use a soft, clean cloth to wipe the lenses. Avoid using abrasive materials as they can scratch the lenses. Store your sunglasses in a protective case when not in use to prevent damage. Also, be careful not to expose them to extreme temperatures for long periods as this can affect the performance of the lenses and the frame.
