District Vision’s clarity of purpose and the sense of retaining only the most essential of design elements – all combine to allow you to focus on the path ahead. Both in the great outdoors and in life. District Vision lenses are engineered in Japan with the specific purpose of reducing strain on the eye caused by physical exertion. The eye is a fundamental sensor to the human brain. They conduct experiments around eye protection and relaxation to allow athletes and explorers to reach their human potential.