Yellows Plus – Designed and made in Japan by designer Toshiaki Yamagishi, born in Dec 29 1966. Yellows Plus is the result of the harmony between high precision parts, tools of high technologies and the sure eyes and skillful fingers of expert engineers on assembling. They use the purist titanium and the Japanese are the best at sourcing, milling, refining and working this precious metal. Titanium is lightweight, strong, corrosion resistant and abundant in nature. Titanium is nontoxic and generally biologically compatible with human tissues. The design of their glasses is meticulous in detail, fit and comfort. Their acetates use keyhole bridge fittings which fit the most challenging of noses and their connections between the spectacle front and the arms are a thick titanium charterer.