FENTY sunglasses are crafted from carefully selected materials. To preserve them over time, please follow these recommendations: for daily cleaning, use the microfiber cloth provided with every purchase. If needed, run your sunglasses under warm water and clean them with liquid non-greasy soap. After rinsing, dry them with the microfiber cloth provided with every purchase. When you are not wearing them, store your sunglasses in their original case to keep them from shocks, humidity and heat. Avoid any contact with alcoholic, greasy or abrasive substances.