A Japanese eyewear brand founded in 2010 by designer Yu Imaizumi, hand-made in Sabae, Fukui Prefecture, the center of Japan's eyewear manufacturing since the early 20th century. The name comes from the iris flower, and the brand's guiding idea, onko-chishin, translates roughly to learning from the past to create something new: classic frame shapes reworked with modern precision and materials rather than replaced by trend-driven designs.