1.WHAT ABOUT DONNA? Donna has specialized in eye-protective methods from 1994,and established business relations with more than 60 countries,and been lauded for impressive quality and sun protection.We're professional in R&D,manufacture and business on high quality glasses, including sunglasses,optical lens.Design,technology,and craftsmanship have made Donna sunglasses sought-after accents.2.THE GREAT ADVANTAGE OF DONNA GLASSES FARMEDONNA eyeglass frames use skin - friendly materials to prevent skin allergies.Fashion and stylish design cool sunglasses for mens and womensThe material of the frame is light and does not cause pressure. It can be worn for a long time.The frame uses high quality materials and durable time for more than 10 years.In order to provide customers with stress free shopping experience, we support the returns within 30 days3.CAREThe spectacle frame is not corroded by sweat, rain and so on. If you need to clean it, you can wash it directly with tap water, but try to avoid brushing.