These black District Vision Takeyoshi Altitude Master sunglasses are constructed in Japan with a hypoallergenic nose pad, tips with titanium cores and tinted lenses with an oil and water-repellent finish, and anti-reflective coating on the inside. Vigorously tested on athletes in order to achieve optimum performance, they have lightweight frames and provide variable light transmission for enhanced visibility in changing conditions. Ideal for trail running, these District Vision sunglasses will have you reaching new heights, figuratively and literally speaking.