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The Rolf Sill M+ is an optical frame made from Substance, Rolf's proprietary plant-based material derived from castor beans. 3D printed in the Tyrolean Alps, Austria with a patented Flexlock hinge, each frame is lightweight, flexible, and fully sustainable. Rolf Substance won the European Green Award for pioneering eco-friendly eyewear design. Available at Visionary Optics' three NYC locations with same-day ZEISS prescription lenses, or online. Substance is made from the purely plant-based material of the castor bean and impresses with its fantastic wearing comfort, robustness and simultaneous lightness. The patented Flexlock® hinge makes the frame flexible and very durable at the same time. Handmade in Austria Sustainably produced Plant-based material High-quality lenses Patented Flexlock® joint
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🇺🇸 Ship from USA · On Agora since 2026
$625.00