Using your Tifosi Sledge Lite sunglasses is a breeze. First, adjust the ear pieces to get a comfortable and secure fit on your head. When you're out in the sun, these sunglasses will work great to block glare and protect your eyes from UV rays. Make sure to put them in the included case when you're not using them to avoid scratches. To clean the lenses, use a soft microfiber cloth. Avoid using harsh chemicals as they can damage the lens coating. If the hydrophilic rubber gets dirty, you can gently wash it with mild soap and water and let it dry completely before using the sunglasses again. Enjoy your outdoor activities with these stylish and functional sunglasses!