How to use: Simply put on the sunglasses like you would with any other pair. They're designed to fit comfortably on your face. Notice that the hydrophilic rubber on the frame will grip better when it gets wet, like when you're sweating or in the rain. Maintenance: To keep your sunglasses in top shape, clean the lenses with a soft, microfiber cloth. Avoid using abrasive materials as they can scratch the lenses. When not in use, store them in a protective case to prevent damage. Be careful not to expose them to extreme temperatures or leave them in direct sunlight for long periods as this may affect the frame and lenses.