Some eyewear brands will concentrate all resources to develop a certain material, in order to become experts in that field. The Italian brand BLACKFIN is one of them. For more than 20 years, BLACKFIN has devoted itself to researching titanium metal, and has reached the highest level of cutting, polishing, and coloring. It has added new technologies such as laser engraving, patented nano-coating and patented swordfish adjustable temple. BLACKFIN has become the world's premier titanium eyewear maker. In addition, all the titanium materials used by BLACKFIN come from Japan to ensure the purity of the titanium metal. Thin, slim, clean and tidy, this is the essence of BLACKFIN glasses.