prescription pure eyeglasses: cutting-edge technology is the hallmark of the pure eyewear® collection. crafted from a single strand of xanadium&trademark; wire, pure eyewear® is the thinnest rimless
eyewear available. sleek and innovative, each style is handmade to ensure the highest quality manufacturing standards. pure eyewear® uses patented
threaded lens technology&trademark;, a unique one-piece mounting
system that uses no screws or external hardware to hold the
lenses in place.