A collaboration between Roa and District Vision, the Kohei Aero Blade Ti is a six-base, rimless blade-style sunglass system engineered in Japan combining functionality and design. The frame is made entirely of betatitanium, known for its exceptional lightweight and durability, weighing in at just 22g for comfort and resilience. Designed for a fully customizable fit, the frames feature custom anodized titanium hardware, hypoallergenic rubber nose pads, and temple tips. The D+ therapeutic grade lenses are constructed from a proprietary shatterproof polycarbonate, ensuring robust eye protection. The lens interiors are treated with anti-reflective and oleophobic coatings, offering comprehensive protection against glare, water, and oil.