Mercedes and Modern Meadow debut a high-performance leather alternative made from plant proteins and recycled tires, part of a wave of luxury materials reshaping automotive and interior design.
The seatbacks in Mercedes-Benz’s new concept car are upholstered in something that looks like leather and performs better than leather, but contains no animal products at all. The black seat pads feature a Nappa-look variant of a material engineered from recycled racing tires and plant proteins — a blend that’s as much chemistry as design.
The material is called Innovera. Developed by New Jersey-based bio-design company Modern Meadow, it forms the core of a new development partnership with Mercedes-Benz, aimed at integrating more sustainable, scalable interiors into its next generation of electric performance vehicles. Unlike traditional leather, Innovera is made with more than 80 percent renewable carbon content and requires no preservation or special handling. And unlike most petroleum-based synthetics, it’s designed to perform at or above automotive-grade benchmarks.
“At Modern Meadow, we are redefining automotive interior possibilities with Innovera, our next-generation transformative material that brings beauty, performance, and sustainability into perfect balance,” said David Williamson, PhD, Modern Meadow’s CEO. “In our development partnership with Mercedes-Benz, we have used Innovera to create a new luxury leather alternative without sacrificing aesthetics, versatility, and texture. It looks and feels as good as it performs.”
One scrap tire from a retired AMG GT3 race car provides the base for roughly four square meters of the material. In the concept AMG GT XX, that material is used on the seat inserts, layered over carbon-fiber shells and 3D-printed structures that speak to the future of modular, lightweight automotive design. The interior is breathable, waterproof, and built for scale.
Performance specs meet material innovation
Mercedes’ decision to debut the material in a concept performance model is no accident. The AMG GT XX is designed to preview the company’s vision for high-output, fully electric vehicles. That includes more than 1,000 kilowatts of power, 800-volt architecture, and a drag coefficient under 0.20. But its cabin makes a separate statement: that sustainability is no longer a compromise on luxury or engineering.
Modern Meadow’s Innovera is engineered to be compatible with standard industrial processes, meaning manufacturers don’t need to overhaul machinery or retrain entire divisions to work with it. It is also lighter than traditional leather and twice as strong, according to the company. That combination, plus aesthetic flexibility, gives it a real shot at series production. It can be finished as suede, nubuck, or full grain, and is available in a range of colorways and textures.
For Mercedes, this development aligns with its Vision 2039 carbon-neutral strategy. Roughly 22 percent of a car’s lifetime emissions come from materials and production. And as regulatory pressure builds, especially in the E.U., the supply chain itself has become a target for emissions reductions. Sustainable interior materials like Innovera offer a way to meet both compliance goals and consumer expectations. According to one report, 73 percent of luxury shoppers now say they consider sustainability a key factor when making purchasing decisions.
Modern Meadow has been positioning Innovera as a platform material across multiple industries, including furniture, fashion, footwear, and automotive. The company’s commercial-scale readiness, combined with material flexibility, positions it as one of the few contenders able to meet both performance and volume requirements across sectors.
The fruit waste economy
While Mercedes and Modern Meadow take aim at the automotive interior, Danish company Beyond Leather Materials is expanding in a different direction: flexible, fruit-based leather alternatives for furniture and fashion.
Leap Flex is the company’s latest launch — an updated version of its original Leap material, made from upcycled apple waste. This new formulation is designed for use on complex surfaces that require more stretch, bend, and tensile strength than traditional plant-based materials usually allow. With an elongation rate of 130 percent and tested resistance to 50,000 flex cycles, it brings performance metrics closer to commercial-grade expectations.
“Sustainable design should never limit creativity,” the company stated in its announcement. “That’s why we’re introducing Leap Flex, a more adaptable version of our signature material, Leap.”
Leap Flex was unveiled in tandem with two new color options — Burgundy and Macchiato Beige — suggesting the brand is eyeing the interiors market as much as fashion. In 2024, Beyond Leather shifted from R&D to commercial production with the opening of its German manufacturing facility. Its USDA certification reflects its 91 percent biobased content, and partnerships with sustainable production lab Veshin and design-forward furniture brand Takt indicate an appetite for creative industrial-scale collaborations.
Leap Flex is not yet used in automotive design, but its stretch capacity and durability make it a plausible candidate for luxury interiors down the line. It’s already proven itself in flat, structured applications, and the new flexibility gives it a foothold in upholstery and curved form factors.
On the opposite end of the scale — from a global OEM partnership to a single-entrepreneur prototype — Shelley Houston’s KiwiLeather Innovations in New Zealand is building a material business out of agricultural leftovers.
The idea came from her son’s job at a kiwifruit orchard in Papamoa. The amount of wasted fruit shocked her. “I used to be quite a keen baker,” she said. “But I found there’s only so much baking you can do with kiwifruit.” From there, she started experimenting, eventually landing on a formula that worked better than expected.
She partnered with Scion Research, a Crown institute focused on forest and bio-based innovation, to refine the material into something suitable for commercial testing. The result is a plant-based, plastic-free leather alternative that users have said “smells just like leather” — a small detail, but one that resonates in a luxury context where texture and scent matter.
The prototype is being pitched to the automotive and furniture industries, though no commercial launches have been announced. “There’s just not enough product out there, enough bio-materials for these companies to be able to create that sort of thing,” Houston said. She’s working with local packhouses to secure a steady stream of rejected fruit and expects product samples to be available soon.
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