The District Vision Junya Racer Black Sunglasses with District Sky G15 lenses are your best bet for quality running sunglasses. They spent two years developing and perfecting these sunglasses. Made with Japanese engeneering, these frames have D+ lens technology, an adjustable hypoallergenic rubber nose pad and temple tips with a titanium core. The nosepad is hypoallergenic and mounted with titanium screws and a titanium core to produce the lightest, most comfortable sports frame. These glasses come with District Vision's highest grade 630GSM microfibre running pouch and ships in a Munken print 150g paper box. TTested by New York City athletes and made in Japan. The District Sky G15 lens provides maximum sun protection and allows 11.57% light transmission. This will help to enhance your visibility in a various performance conditions. Prescription lenses can be added to this frame.