Spring/Summer 1999 Titanium Sunglasses by Helmut Lang. Helmut's care for materials was prominent even in his optical line, these being an early example of employing titanium as a light yet robust luxury frame material. Unlike other materials, titanium remains hypoallergenic and nonreactive to oils and the environment. The timeless, understated silhouette is elevated by the novel use of a hinged tinted lens over clear specs. This amazing example is brand new with all tags, documentation, cloth, and case.