Key features: Titanium and acetate frame. Japanese-origin titanium, a noble metal known for its lightness and strength. Round frame. Lenses Include: Lenses certified ISO, IAF, and KAB MC 04. Lenses prepared, cut, and hand-checked in our workshop. Customizable prescription lenses: online and in-store for single vision corrections, in-store for our progressive lenses. Free blue light filter option.