How to use: Simply put on the sunglasses like you would with any other pair. They're perfect for sunny days, driving, or outdoor sports. Note: Don't expose the sunglasses to extreme heat or cold for long periods as it may damage the frames or lenses. Avoid scratching the lenses by not wiping them with rough materials. Maintenance: Clean the lenses with a soft, microfiber cloth. You can use a bit of mild soap and water if there are stubborn stains, then dry them thoroughly before storing. Keep them in a hard - case when not in use to prevent accidental damage.