District Vision Nagata Speed Blade Infrared D+ Fire Mirror Running Glasses sunglasses

The Nagata Speed Blade is a six base frame with a classic aviator shape designed to protect the eyes and enhance the field of vision. The frame is constructed from TR90 injected nylon with beta titanium armature and hardware, and features our signature D+ therapeutic grade lenses, constructed from a proprietary form of shatterproof polycarbonate. The lens interiors are treated with both anti-reflective and oleophobic coatings for holistic eye protection and water and oil repellency. A fully adjustable and hypoallergenic rubber nose pad and temple tips provide a secure and customizable fit.

D+ Fire Mirror

D+ Fire Mirror was developed for physical pursuits requiring maximum sun protection. The mirror coating facilitates additional infrared screening. The lens offers 100% UVA/B protection while transmitting 19.17% of visible light and 14.03% of blue light. Athletes often forget sunglasses are a medical device. Unlike our skin, our eyes do not contain melanin. This means each time we expose them to sunlight they become more sensitive.

Sports Lens of the Future
D+ lens technology is constructed from a proprietary form of polycarbonate, which is shatterproof. The lens interior features an anti-reflective application for holistic eye protection. The lens is finished with our oleophobic treatment making it water and oil repellent.

The Most Comfortable Sports Frame
Our hypoallergenic adjustable nosepad is mounted with titanium screws and a titanium core to produce the lightest, most comfortable sports frame. We recommend visiting a preferred optician to ensure a durable and comfortable fit.

Each frame is accompanied with an Ultrasuede pouch, serving as both a storage solution and a lens-cleaning accessory. Ultrasuede is a soft material with a luxurious texture incorporating 30% recycled plant-based fibers, utilizing advanced fiber technology pioneered by Japan’s Toray Industries, Inc.
Research & Development
District Vision researches and develops tools for outdoor pursuits. We have collaborated with athletes to produce the world's first proprietary Japanese eyewear system. With all our products, we maintain the methodology of Kaizen, the concept of continuous improvement, to make the finest tools for athletes.