we reduced eyewear to three essential components — frame, hinge, lens — sourced and developed the pinnacle of each, and engineered them to function as one finely tuned instrument.
01 — engineered in germany
a single advanced material with distinctive visual and tactile appeal. lightweight in hand. sculptural in detail. natural resistance to sunscreen and skin oils. no paint, no rubber. free from unnecessary decoration.
02 — invented in austria
patent-pending stacked hinge architecture. multiple spring hinges pivoting in harmony on a single unified axis. a firm, deliberate action with weight behind it. powerful, precise, elegant. visible by design.
03 — made in japan
patented tajima polarized lens technology. tunes vision for enhanced color, contrast, and detail. lightweight, durable, distortion-free. 14 lens colors. prescription capable. sharp in glare, calm over long hours.
we live hybrid days. we wanted a pair that performed at the highest level for our activities, with contemporary styling we could wear confidently anywhere, anytime.
we've been replacing lenses for years through tajima direct. we see thousands of frames at every stage of their life — not just new, but after months and years of real use. the same failures keep showing up. basn5 was designed specifically to solve them.
every component is modular and replaceable. basn5 is designed, engineered, and built to stay in use.
the pair you stop replacing.
