The new substance collection by ROLF Spectacles introduces a new natural material into the ROLF collections produced in Austria. The collection uses a powder derived from a very specific plant and brings with it an array of sustainable and functional properties that have enabled the company to develop innovative, plant-based eyewear. The substance collection’s extensive range of 23 frame designs come in a palette of six basic colours, making for a diverse and versatile offering. Refined contours, slim temples, and strategically placed curves turn each pair of glasses into a stunning yet functional accessory that’s also comfortable to wear, says the company. ROLF’s award-winning Flexlock hinge has proven itself the ideal component for the frames. It can be printed at the same time as the frame using 3D printing technology, meaning ROLF can make its new glasses all at once and therefore keep the number of external suppliers to a minimum. In addition to the high performance of the screwless and patent-pending Flexlock hinge, glasses wearers will also benefit from the flexible, natural, and skin-friendly properties of the plant-based frame.