Frames: These crazy materials are reinventing your glasses
Eyeglasses aren't made the same way anymore… And that's a good thing. Between environmental pressures, the expectations of a new generation of consumers, and the rise of innovative manufacturing technologies, the eyewear industry is undergoing a profound transformation. Coffee grounds, plastics recovered from the oceans, graphene, Breton flax fibers… Material innovation in optics has never been so abundant. And this is just the beginning!
The classic "green" ones that are now becoming the norm
Bio-acetate: from niche to mainstream
What was still a niche marketing ploy in 2022 has become a mainstream trend. Bio-acetate—composed of 60% plant-based cellulose—was launched en masse by Luxottica as early as February 2023, signaling the industry's impending shift. Unlike traditional acetate, it contains no petroleum-based plasticizers, making it fully compostable. By 2025, the focus is largely on the sustainability and use of this eco-friendly material, which offers a wide variety of colors and finishes—without sacrificing aesthetics.
Recycled titanium: lightweight, strong, responsible
A staple of high-end eyewear, titanium is also undergoing an eco-friendly transformation. Recycled titanium, popularized by the Matsuda brand, allows for a 35% reduction in frame weight without compromising strength. Hypoallergenic and extremely corrosion-resistant, it remains the preferred choice for those seeking to combine comfort, elegance, and durability.
Bio-based polyamide: the flexible challenger
Bio-based polyamide, derived from renewable raw materials, is gaining popularity. This material, both flexible and durable, allows for the creation of comfortable and long-lasting frames with a low environmental impact. It is increasingly replacing Ultem in sports and everyday eyewear ranges, with the added advantage of being non-petroleum-based. Brands like Götti , the Swiss eyewear manufacturer, have already incorporated polyamide into their 3D printing processes.
The innovators: when raw materials surprise
Ocean plastics: the sea as a recycling center
This is one of the most symbolic trends of the last two years. Sea2see needs no introduction, having introduced to the market products made entirely from plastics recovered from the oceans, combining aesthetics and environmental awareness. This approach addresses a dual urgency: reducing marine pollution while offering attractive products. Other European brands are following suit, proof that the ocean plastics industry is moving beyond the realm of novelty to become a genuine market segment.
Stone and beans: ROLF reinvents the use of matter
What if the most surprising materials came from nature's rawest sources? This is the successful gamble taken by the Austrian brand ROLF , which won the CSE (Certified Sustainable Eyewear) award for the second time in 2025 at the MIDO trade fair in Milan—the world's leading showcase for the eyewear industry. Its unique approach: producing frames from materials as unexpected as wood, castor beans , and even slate , a natural stone with a deep hue. Beyond originality, ROLF focuses on timeless design built to last—a way of reducing its environmental footprint not only through the choice of materials, but also through the longevity of the pieces themselves.
Unusual materials: shells, linen, coffee…
Innovation doesn't always come from laboratories. Several artisanal brands, particularly French ones, are exploring locally sourced and radically unexpected raw materials. Friendly Frenchy specializes in making frames from oyster shells and other bio-based marine materials, collected from producers and restaurateurs on the Normandy and Atlantic coasts. The Linotte brand offers frames made from flax fibers grown organically, without irrigation or pesticides. And the Ukrainian start-up Ochis Coffee continues to produce frames from coffee grounds and plant-based biopolymer—biodegradable a hundred times faster than a conventional plastic frame.
Manufacturing reinvented: 3D printing takes hold
Materials aren't the only driver of transformation. 3D printing now makes it possible to create custom-made frames, perfectly adapted to each face shape, while reducing production waste. The result: less material waste, cutting-edge designs impossible to machine using traditional methods, and maximum personalization. The Hakino brand, founded in western France, launched a collection with 3D-printed frames after working with wood and castor oil, combining artisanal techniques with advanced technology.
And tomorrow? Intelligent matter enters the scene
The next frontier is no longer just about eco-friendly materials: it's about materials capable of incorporating technology. Warby Parker and Google have officially announced their collaboration to develop lightweight, AI-powered Gemini glasses, with the first product slated for 2026. These frames will need to be light, durable, and discreet enough to integrate microphones, cameras, and speakers without the wearer feeling like they're wearing a gadget. It's a challenge of design and materials as much as of technology.
On Meta's side, the Ray-Ban Smart Glasses Gen 2 — equipped with a 12-megapixel camera and an 8-hour battery life — are already on the European market, setting the standard that competitors will have to meet.
What this changes for opticians and their customers
Consumer demand is very real, and supply is adapting rapidly: major retailers and independent brands alike are now systematically incorporating one or more "responsible" materials into their new collections. For opticians, this growing trend represents both an educational opportunity—explaining the differences, highlighting the origin, justifying the price—and a genuine differentiating factor compared to online offerings.
The era of frames as mere containers for lenses is well and truly over. What we wear on our nose now says as much about our values as it does about our style, and that's a good thing!
