Using your Tifosi Smirk sunglasses is a breeze. Just put them on your face and adjust the frames for a comfortable fit. These sunglasses are great for outdoor activities like running, cycling, or just going about your daily errands. When not in use, store them in a protective case to avoid scratches. To clean them, use a soft, damp cloth and mild soap. Avoid using abrasive materials or harsh chemicals as they can damage the lenses and frames. Also, don't leave them in direct sunlight or hot places for a long time as this may affect the frame's shape and the lens's performance.