1. These vintage round sunglasses are made of high-quality plastic frames, protection lenses, reinforced metal hinges, all the details ensuring you a long time using them. 2. Polarized lenses can filter out sunlight reflected glare, and protect your eyes from long-term damage by blocking 99% of UV rays 3. These sunglasses are the perfect choice for outdoor sports and activities and are suitable as a high fashion accessory and daily wear all year round.