Key features of the polarized sunglasses: five interchangeable lens: 1 pair of polarized lenses and 4 pair pairs of interchangeable original lenses provide more using choices according to different activities, the grey polarized lenses can be used for riding, driving, golf on a strong sunlight day, the yellow one is for night activities, the anti-fogging transparent lens is designed for cloudy and rainy days lightweight: only 29g pair, great to wear for long periods of time. Ultralight cycling sunglasses reduce the pressure on your nose and temples safety: 100% uv400 protection can block both uva and uvb harmful radiation. It is essential to protect your eyes against all the rays below 400nm harm when doing outdoor sports durable: high toughness and well shock resistance polycarbonate lenses can be used for a long time myopia frame: it comes with one myopia frame for shortsighted lenses, doesn't need to put contact lenses again comfortable: adjustable soft rubber nose bridge can easily find the right angle for you, the temple also can be replaced by a sports headband while riding running, or playing golf, more comfortable and not easy to fall off 4 gifted replaceable lens are for different weather conditions with different functions five interchangeable lens: 1 pair of polarized lenses and 4 pair pairs of interchangeable original lenses provide more using choice according to different activities,the grey polarized lenses can be used for riding, driving, golf on a strong s...