Gradient-tinted lenses with a bevelled, diamond-cut edge and gold-tone metal hardware — there's no rim, so the lens edge itself is exposed. The bevel is cut directly into the lens rather than added as a separate trim, which is part of what gives the edge its light-catching sparkle but also means it can't be re-cut or repaired if chipped. Clean with a microfibre cloth using light pressure only, working from the centre outward, and never grip the lens by the bevelled edge when putting them on or taking them off.