The new regulation will strengthen reporting, expand dismantling requirements, and demand a more consistent and transparent approach to recovery. It asks producers to understand the materials present in each vehicle, how easily they can be separated, and how they perform once they enter the waste stream. These data feed directly into the end-of-life system. In this model, every material begins to carry a measurable consequence. Some will reduce long-term burden because they are easy to separate and recover. Others will increase it because they are complex, composite, or difficult to treat.

Under the current system, OEMs support the end-of-life process by contributing to approved schemes that manage collection, treatment, and reporting. These contributions reflect the overall material flows that reach dismantling and treatment sites each year. When the new regulation takes effect, this principle will remain, but the link between material performance and cost will become clearer. Fees will reflect actual recovery outcomes rather than broad averages, meaning that durable single-substrate materials that move cleanly through the system help to contain long-term producer costs. Materials that add complexity tend to influence these fees negatively as reporting becomes more precise. The practical effect is that material choices made during design influence the financial obligations attached to the vehicle once it reaches its final stage of use.

At the end of a vehicle’s life, the dismantling process begins with the removal of parts where recovery is feasible, followed by mechanical treatment stages that separate remaining materials by size and density. Components that can be reused or remanufactured are removed during the initial phases, and the remaining structure goes through shredding and sorting routes defined in the regulation. Material performance in this system is assessed by weight and by the category into which it finally falls. Clean single-substrate materials can be directed into higher-value recovery streams. Multi-layer composites or materials that resist separation tend to fall into mixed fractions that are more difficult to reuse or recycle. As reporting becomes more detailed, these distinctions matter because they influence both compliance and long-term costs.

When materials reach the dismantling stage, the substrate’s structure determines how they progress through the recovery process. Leather enters this stage as a cohesive, single-substrate material. Unlike multi-layer synthetic composites, its surface finish is a coating rather than a bonded structural layer, meaning it behaves as a single unit during dismantling. Crucially, leather seat covers are typically attached using stitching and clips rather than adhesives. This mechanical connection allows for clean separation from the underlying foam, a critical advantage over synthetic composites that are often glued or laminated, making separation impossible. The foam underneath is usually the limiting factor for recovery because it is a synthetic polymer and not biodegradable, while the leather surface maintains the same material profile it has in use. As reporting becomes more precise, these characteristics influence how each material is counted once it enters the system.

This is where material choice shifts from a design question to a financial consideration. A cabin consists of surfaces, foams, fibres, and polymers that will eventually go through a dismantling process. A material that lasts many years and enters the waste stream as a single natural substrate supports easy recovery. Conversely, a material made from multiple incompatible layers can complicate separation and increase processing costs. As recycling targets become more ambitious, the financial reasons become evident. Materials that facilitate straightforward recovery lower long-term costs. Those that make recovery more difficult raise them.

Leather occupies a unique ‘sweet spot’ in this new system. As a single-substrate material with exceptional durability, it enters the waste stream without the complexity of multi-polymer laminates. It offers a clean, detachable stream for dismantlers. These are no longer just quality claims; under the new fee structures, they are verifiable assets that reduce the producer’s financial liability.

For vehicle designers, the question becomes simple: Which materials support a long service life and easy handling at the end of use? Which ones make it harder? Which ones increase the burden on the recovery system? Under Extended Producer Responsibility, these questions become genuine cost considerations. The decisions made today will influence the fees attached to vehicles placed on the market in the coming years.

For tanneries and the wider leather supply chain, this shift offers an opportunity to bring clarity. Data on durability, service life, substrate composition, and recovery potential helps manufacturers meet their obligations confidently. The more accurate this information becomes, the easier it is for designers to specify materials that support both performance during use and at end of life.

The arrival of the new regulation does not alter the value of leather; it clarifies it. As producers enter a period where every material carries a financial signal, the importance of durable natural substrates becomes more evident. Leather supports the aims of the regulation because its structure facilitates easier and more reliable recovery.

The next phase of producer responsibility focuses on accountability, transparency, and understanding the true cost of material choices. In this context, leather stands out as a material that promotes circular design and long-term value. It provides performance today and helps to reduce future burdens. As Extended Producer Responsibility becomes an everyday reality, that combination is more important than ever.

In this new landscape, the distinction between biogenic and fossil carbon is becoming more significant. The two are often mistaken, yet they behave very differently within the circular economy. Fossil carbon releases new greenhouse gases into the atmosphere because it comes from long-term geological storage. Biogenic carbon is part of the ongoing cycle of carbon through plants, animals, and soil. A material made from fossil carbon will always impose an additional climate burden when burned or degraded. In contrast, a material made from biogenic carbon simply returns what nature originally placed there.

Leather firmly belongs to the biogenic category. It is produced from hides that come from the natural carbon cycle, rather than being manufactured from fossil feedstocks. This underpins its advantage in the context of the next generation of European environmental regulations because biogenic materials are treated very differently at the end of their life.

When a synthetic interior made from polyurethane, PVC, or polyester enters an energy recovery facility, all its carbon is regarded as fossil carbon. An average set of synthetic interior components can release around 250 kilograms of carbon dioxide equivalents into the atmosphere at the point of disposal. At current European carbon prices of €80 to €100 per tonne, this results in an additional cost of €20 to €25 per vehicle that relies on fossil-based alternatives. The figure may seem small at first glance, but when multiplied across half a million vehicles, the total becomes a significant annual expense.

Leather avoids this cost entirely because the carbon it contains is already part of the short-term cycle of nature. When leather enters composting or organic recycling, the carbon released simply returns to the atmosphere and is absorbed again by the next generation of vegetation. It does not create new greenhouse gas pressure in the same way that burning synthetic materials does. The advantage is straightforward. Biogenic materials do not carry a carbon price. Fossil materials do.

Alongside carbon charges, there is a second financial pressure that will influence material decisions. Penalties for failing to meet recyclability and recovery targets under Extended Producer Responsibility can range from €2,000 to €5,000 per tonne across various national schemes. These penalties are levied on the unrecovered portion of a vehicle. Any material that cannot be recycled or composted will therefore impose a financial liability directly on the manufacturer. This is especially significant for interiors, as they contain some of the most complex and difficult-to-recycle materials in the vehicle.

When synthetic interiors are disposed of, they enter the small energy recovery allowance provided by European law. The new End-of-Life Vehicles (ELV) Directive allocates only 10% of a vehicle’s total mass to this category. For a mid-sized European car, that is roughly 150kg. If one material family within the interior accounts for 20kg that cannot be recycled or composted, it already consumes about 13% of the total allowance before considering other components. In this context, every kilogram matters, and each additional kilogram of non-recyclability increases the risk of penalties.

Leather again serves a different purpose. Since it can be directed into organic recycling or composting under industrial conditions, it does not consume this narrow allowance. It contributes to the 85% reuse or recycling target rather than the 10% energy recovery limit. This provides manufacturers with more flexibility to manage other materials that are more difficult to redesign or separate. The financial value of this flexibility will increase once Extended Producer Responsibility is fully implemented.

The combined impact of avoided carbon costs and penalties is significant. A manufacturer producing half a million vehicles annually could save between €30m and €50m each year by opting for genuine leather rather than synthetic alternatives. These savings stem from lower disposal costs, reduced labour in dismantling, and the avoidance of carbon charges and recovery penalties. On a large scale, the economic advantages of choosing a biogenic material become evident. The decision between leather and synthetic interiors is no longer solely about design or customer perception; it also involves regulatory and financial considerations.

The idea that leather has a role in the European circular economy is therefore not based on sentiment or nostalgia. It is a direct result of its chemistry and origin. Leather is produced from a natural material that would otherwise become waste. It is stable and durable throughout its service life. Under controlled industrial conditions, it can break down and re-enter the biosphere in a way that fossil-based materials cannot. This natural cycle is the basis of its environmental compliance advantage and also its economic benefit.

The coming decade will clarify this as more manufacturers face the reality of carbon charges and recovery penalties. Materials will be selected not only for appearance or performance but also for their capacity to safeguard the vehicle’s recovery margin and reduce exposure to carbon costs. Biogenic materials will therefore play a key role in the transition to a circular automotive sector.

Leather stands out in this landscape because it already meets the demands of the regulatory environment. It avoids the carbon costs associated with synthetic interiors and the penalties linked to unrecovered waste. It also supports achieving the required recovery percentages. For the automotive sector, this means leather is more than a traditional material; it is a strategic one.

Few subjects have gathered more shadows than the chemistry of tanning. For years the claim has circulated that chrome tanned leather is dangerous and that harmful chemicals define the industry. It is an argument repeated often enough that it has acquired the weight of certainty. Yet certainty is not the same as truth. As Spinoza would remind us, confidence is not evidence. To understand what is real, we must bring it into the light.

Once we understand this, the misconception that chrome tanning is inherently unsafe begins to diminish. Modern tanning relies on trivalent chromium, also known as chromium III, a stable and well-understood form. It is the component that bonds with collagen fibres and provides leather with its strength. It is not the dangerous form, hexavalent chromium or chromium VI, which is strictly regulated and not deliberately used in tanning. When chromium VI is found in leather, it is almost always due to process failure or uncontrolled storage conditions, not the core method itself.

This difference becomes even more evident when you look beyond leather. The same form of chromium used in tanning is also found in everyday stainless steel items such as cutlery, where it offers corrosion resistance and long-term stability. It is entirely safe for food contact and medical applications. Most people place this material in their mouths daily without hesitation. The fact that trivalent chromium is safe for us in this familiar context reveals a great deal about its true nature.

This is where Spinoza becomes even more significant. A belief rooted in imagination can persist for a long time, as long as no one scrutinises it closely. The anti-leather narrative has thrived because it depends on emotional suggestion rather than scientific facts. It is easier to repeat a sensational headline than to understand oxidation states, process controls, and regulatory standards. However, once the difference between chromium III and chromium VI is understood, the fear loses its foundation.

Yet, chemistry is not the only area where imagination has shaped the story. A broader narrative has been constructed that portrays leather as fundamentally harmful while presenting synthetic alternatives as clean and simple. Once again, a small amount of light changes everything. Leather is made from hides that already exist as part of the food system. Using them prevents waste and produces a durable material that can be repaired, refinished, and eventually returned to the earth. In contrast, synthetic substitutes require fossil feedstocks, energy-intensive processing, and create materials that persist long after their useful life.

This clarity is especially important for the automotive industry. Decisions about materials should be based on truth rather than influence or sentiment. When misinformation obscures the discussion, there is a genuine risk that a natural by-product is discarded in favour of plastics with greater environmental impact. But when the system is understood as it truly is, the path becomes more responsible and more in line with the expectations of both designers and drivers.

Spinoza believed that truth does not overpower; it reveals. When you view chrome tanning through that perspective, the shadows disappear. Chromium III is safe; chromium VI is not part of responsible tanning. Leather’s value is defined by process, oversight, and transparency, not toxicity. When light enters the room, the falsehoods spread have no place to hide.

This is a compelling framework for the leather debate. For years, a simple truth has been clouded by shadows created by imagination, emotion, and repetition. Many believe that cattle are slaughtered solely to produce leather. Others think that if leather didn’t exist, cattle wouldn’t be raised or sent to slaughter. These ideas are now repeated so often that they seem true, even though they quickly collapse under the light of evidence.

Spinoza warned that imagination is persuasive when it fills a void where knowledge is absent. Emotion enters that space and repeats itself until the listener becomes convinced of something that reason has never supported. We observe this exact process in modern discussions about leather.

So let us turn to the light.

What we know because it can be seen

Visit any slaughterhouse and see what actually happens. You won’t find a single operation where the meat is discarded and only the hides are sold. That would be absurd. Meat is the economic purpose of cattle farming. The hide is just a by-product that becomes leather or is discarded. Everyone working in agriculture knows this. Every economist studying livestock knows this. Anyone who visits a processing plant knows this.

The market clearly demonstrates this point. A raw hide can sell for as little as three dollars. Yet the cost of raising a cow for three to four years can cost hundreds or even thousands, depending on feed, land, labour, and veterinary care. If the sole purpose were the hide, the industry would collapse immediately. No business can invest so much time and money for a return that would not even cover a single bale of feed.

When a statement contradicts all observable facts, Spinoza would say we are dealing not with intellect but with imagination. A belief shaped by an emotion rather than evidence.

Where do these ideas come from

Anti-leather groups present these beliefs as if they were established facts. They claim that cattle are slaughtered for leather and that demand for leather drives the killing. They reiterate that without leather, cattle would not be raised or killed.

But where do these claims originate? Not from agricultural economists, veterinarians, farmers, or any organisation directly handling livestock data. Instead, these statements stem from advocacy groups that start with a conclusion and then craft a story to support it. This is precisely what Spinoza warned against. When the imagination generates an idea, the mind begins seeking pieces to support it and disregards everything that contradicts it.

Spinoza teaches that an idea based on imagination can be powerful because it is strengthened by emotion. Anti-leather narratives are often paired with dramatic images, strong language, and moral urgency. The emotion becomes more compelling than the evidence, and the listener starts to believe in imagination rather than the reality of the world.

The result is that many people hold a view that collapses the moment they look at the industry objectively. But they rarely do so because emotion has convinced them there is nothing left to question.

The undeniable truth

Here are the things that can be shown rather than argued.

A significant number of hides are destroyed each year. Not because there is no leather industry, but because demand does not always match supply. These hides come from animals already slaughtered for meat. They are then burned, buried, or left to decompose.

When a hide is not processed for leather, it does not mean the animal was not slaughtered. It merely excludes the chance to utilise a material provided by nature.

Instead of using these hides, we produce synthetic substitutes from plastics like PU. This introduces new environmental challenges: fossil extraction, chemical processing, microplastic shedding, and disposal at the end of their life, which can last centuries. In trying to avoid one perceived harm, the world often causes another.

This illustrates the danger of replacing truth with emotion. Spinoza would argue that an idea born from imagination can become harmful if left unchallenged. The belief that hides should be avoided does not protect animals; it merely replaces a natural substance with something that will burden the environment for generations.

A moment of clarity for the automotive industry

This is important for the automotive industry because it is at the heart of a global conversation about materials, impact, and responsibility. Designers and engineers look for solutions that are genuine and lasting, not influenced by fleeting emotions. Many already recognise that leather is a natural by-product that reduces waste rather than adds to it. Others are still assessing conflicting claims, often made by groups that present imagination as fact.

The automotive industry does not flourish in the shadows. It prospers when decisions are made based on truth. When decision-makers see the full picture, the path ahead becomes clear. It is not about defending tradition; it is about recognising that the responsible use of natural materials is better for the environment than increasing reliance on plastics.

How we find our way back to truth

Spinoza believed that the intellect can liberate people from false ideas when it remains steady, calm, and grounded in reality. He wrote that truth manifests itself in the same way that light reveals what is inside a room. Once you see it, the shadows lose their influence.

The leather conversation needs that light.

The truth is that cattle are not killed for leather. Hides exist because of the meat industry. Using hides is a responsible way to utilise resources. Discarding hides while producing new plastics is wasteful and harmful to the environment. Many anti-leather claims are based on emotion rather than evidence, and repeated emotion can sometimes be mistaken for fact.

To achieve better outcomes for animals, people, and the planet, we must start with what is real. We should ask questions instead of accepting slogans. We need to seek understanding rather than follow imagination. We have to commit to truth, even when it requires us to reassess our assumptions.

Spinoza taught that an emotion can only be replaced by a stronger emotion based on knowledge. That presents an opportunity for the leather industry. Not to argue with those who have closed themselves to evidence, but to shed a clearer light for everyone else. When people see how the system truly functions, they no longer rely on shadows.

Truth does not need to shout. It simply needs to be seen.

The automotive industry is undergoing one of its most significant material shifts in decades. New EU regulations on vehicle recovery and landfill bans will redefine what “sustainable” means within the cabin.

In this new One4Leather paper, we explore how genuine leather helps OEMs meet the End-of-Life Vehicles Directive, Extended Producer Responsibility (EPR), and the 2030 circular-economy targets, combining regulatory compliance, lower lifecycle costs, and natural circularity.

If this feels familiar, it is because we have observed a similar pattern with other innovators in alternative materials. Natural Fiber Welding, the maker of Mirum, announced that it would wind down operations in the United States after years of investment and high-profile partnerships. Good ideas still require durable unit economics, scale, and clear end-of-life pathways. When these are absent, glossy promises encounter hard limits.

There is also a technical fact that should not be overlooked. Even the most natural-sounding textile innovations often depend on synthetic chemistry to achieve performance. Piñatex describes finishes that include resin top coats and a high solid PU transfer coating for its performance line. In other words, to meet durability standards, the materials revert to polymers that are difficult to recycle at scale today. That does not make the effort invalid, but it does challenge the idea that these offer a straightforward path to cleaner supply chains in cars.

End of life is where the story worsens. Across Europe, only a tiny fraction of textiles is actually recycled, with most ending up in incineration or landfill. Coated and composite textiles are among the hardest to recover, which poses a challenge for many leather-look alternatives made from polyurethane or other polymer systems. When we design interiors for a useful life measured in years and then produce waste that persists for much longer, we are not solving for sustainability. We are simply delaying it.

Why are we still searching for a replacement for something that already exists as a by-product of the food system and has been proven in automotive duty cycles? As long as people eat beef, hides will be available. Turning that unavoidable by-product into long-lasting automotive leather is a practical way to reduce waste, support value in rural economies, and provide a cabin material that drivers genuinely enjoy living with. When we fail to use hides, more of that resource risks becoming waste, while the market fills the gap with fossil-based substitutes that are destined for disposal. That is the opposite of circular economy.

We should also maintain some perspective. Vegans still make up a small part of the world’s population. Repeated national surveys show that the vegan share hovers around two to three percent, with a much larger group choosing moderation instead of total elimination of animal products. Many in that broader audience accept the simple logic that if meat is consumed, then the responsible approach is to use the hide well. In the automotive industry, this means specifying genuine leather that is responsibly tanned and finished, with audited supply chains and ongoing efforts to reduce impact.

This brings us back to marketing language. Is the push to badge fossil-based leather alternatives as vegan truly about the planet, or is it a label that creates a premium story while neglecting the end-of-life and performance realities? Vegan is a dietary choice. It is not a guarantee in material science. When the label is used to suggest a universal environmental benefit without clarity on inputs and disposal, it becomes greenwashing under another name. The recent business failures in this sector do not prove that innovation is pointless. They indicate that slogans cannot sustain a product through the tests of cost, durability, repair, and real-world recovery.

Automotive brands seek cabins that age gracefully, clean easily, and improve with time. They also require supply chains that withstand scrutiny. Genuine automotive leather provides this combination when sourced from responsible tanneries and specified with modern finishing systems that meet strict chemical and performance standards. It is a material derived from a resource already in use, not a new product reliant on additional fossil inputs. If we design cars to last, we should opt for materials that do the same, and we need to be transparent about where those materials end their life. This is how you craft interiors that drivers love and tell a story that remains credible once the headlines fade.

The key issues the signatories are calling on the COP forum is to…

• Recognise the cyclical, climate efficient nature of leather and its potential for a positive contribution to reducing the climate impacts of consumer products. In particular, a full and proper impact assessment of the unevidenced claim that leather is a driver of deforestation and the development of reliable measures of the lifespan of materials and products and their impact on consumption are required.
• Support LCA methodologies that accurately account for the environmental impact of all materials, in particular when by-products are compared to determining products, including end of life properties and the consequences of use and substitution.
• In keeping with the aspiration for reduced consumption, greater circularity and reduced waste, to promote ‘slow fashion’, durable bio-based materials and products, and items that can be used many times, repaired and refurbished, and last for years.
• Wherever feasible to encourage the use of natural renewable fibres like leather and reduce unnecessary reliance on fossil-fuel-based materials.

Please read the full manifesto below.

Leather and the Measure of What Matters

In August of this year, UN negotiations once again failed to develop a landmark treaty to end plastic pollution. Insurmountable differences of opinion between those nations seeking reductions in plastic production and those in favour of increasing recycling resulted in yet another deadlock in discussions that have been taking place since 2022. As we see every year with the COP negotiations, resolving differences of opinion and achieving global consensus on how best to protect the planet and people is a huge challenge. A significant factor is the often opposing views of the negotiating parties and their presentation of the evidence given to support those views. The failure of the plastics treaty and the challenges of COP show us the same truth: sustainability debates are skewed by narratives and numbers that obscure reality.

This obfuscation has also blighted perceptions of leather. Leather, durable, repairable, and deeply woven into our cultural identity, is one of humanity’s oldest materials. For millennia it has clothed, sheltered, and protected us. And yet, in today’s sustainability discourse, leather is largely misunderstood—sometimes vilified, often mismeasured, and rarely recognised for what it truly is: a renewable, circular byproduct of livestock farming. This manifesto seeks to correct that imbalance and to position leather as a positive, renewable biomaterial within a circular economy

The story that is told about leather is distorted. It is often assumed that cattle exist only to produce hides, ignoring their status as a byproduct of the meat and dairy industries. In this sleight of hand, leather’s role in creating value from what would otherwise be waste is erased. Leather is often conflated with industrial animal agriculture’s impacts—deforestation, methane emissions, water use. Reports and headlines frame leather as a driver of environmental harm, but this is a distortion born of flawed accounting.

Cattle are not raised for hides. They are raised primarily for meat and milk. Hides represent only a small fraction of the animal’s economic value; on average, only 1.5%. However, current Life Cycle Assessments (LCA) typically assign disproportionate emissions to hides and the resulting leather. This flawed methodology makes leather appear environmentally costly when, in fact, it is part of a circular system that valorises what would otherwise be waste. Each year millions of hides go unused—discarded into landfills or incinerated—precisely because of reduced demand for leather. To abandon leather is not to save a cow. It is to squander a durable, repairable material and replace it with synthetics derived entirely from fossil fuels.

The reality is that leather, when responsibly tanned, is a natural, renewable biomaterial with an unparalleled lifespan. A well-made leather product lasts decades, is repairable and biodegradable in ways other materials cannot emulate. Leather bridges utility and heritage: a boot that wears in, not out; a bag that can be passed down, not thrown away.

To treat leather as a sustainable material is not to deny its origin in livestock farming, but to recognise that, as long as meat and dairy are produced, hides will exist. The choice is not between leather and no leather but between using hides responsibly or wasting them and replacing them with fossil-based substitutes.

Leather embodies the principles of circularity. Leather extends the value of existing resources, prevents waste, stores carbon and offers durability that reduces consumption over time. Unlike synthetics, it develops character through age, repair, and reuse. Unlike plastics, it returns to the earth when its life is done.

Moreover, the value of leather is cultural as much as material. It carries histories of craft, artistry, and longevity. It resists the throwaway culture that plastics fuel. In a world awash with fast fashion and disposable products, leather reminds us that quality, function, beauty and respect for resources are still all an option.

Therefore, we, the undersigned organisations, again request the COP to endorse our call to:

• Recognise the cyclical, climate efficient nature of leather and its potential for a positive contribution to reducing the climate impacts of consumer products. In particular, a full and proper impact assessment of the unevidenced claim that leather is a driver of deforestation and the development of reliable measures of the lifespan of materials and products and their impact on consumption are required.
• Support LCA methodologies that accurately account for the environmental impact of all materials, in particular when by-products are compared to determining products, including end of life properties and the consequences of use and substitution.
• In keeping with the aspiration for reduced consumption, greater circularity and reduced waste, to promote ‘slow fashion’, durable bio-based materials and products, and items that can be used many times, repaired and refurbished, and last for years.
• Wherever feasible to encourage the use of natural renewable fibres like leather and reduce unnecessary reliance on fossil-fuel-based materials.

Signatories to the Leather Manifesto

• Alliance France du Cuir (AFC)
• American Leather Chemists Association (ALCA)
• Associação Portuguesa dos Industriais de Curtumes (APIC)
• Association pour l’Assurance Qualité des Fabricants de Bracelets Cuir (AQC)
• Australian Hide Skin and Leather Exporters’ Association Inc (ASHLEA)
• Centre for the Brazilian Tanning Industry (CICB)
• Centro Tecnológico das Indústrias do Couro (CTIC)
• Confederation of National Associations of Tanners and Dressers of the European Community (COTANCE)
• Chamber of the Tannery Industry of the State of Guanajuato (CICUR)
• China Leather Industry Association (CLIA)
• Fédération Française des Cuirs et Peaux (FFCP)
• Fédération Française Tannerie Megisserie (FFTM)
• International Council of Hides, Skins and Leather Traders Association (ICSHLTA)
• International Council of Tanners (ICT)
• Is It Leather? (IIL)
• International Union of Leather Technologists and Chemists Societies (IULTCS)
• Leather & Hide Council of America (LHCA)
• Leather Naturally (LN)
• Leather UK (LUK)
• One 4 Leather (O4L)
• Sustainable Leather Foundation (SLF)
• Türkiye Deri Sanayicileri Derneği (TDSD)
• Verband der Deutschen Lederindustrie e.V. (VDL)
• Wirtschaftsverband Häute/Leder (WHL)
• Zimbabwe Leather Development Council (ZLDC)

That same reasoning prompts an important question for another natural material facing similar confusion: leather.

In several countries, the use of the word “leather” for plastic-based materials is already prohibited. Italy has introduced clear legislation reserving the term exclusively for materials made from animal hides. France has taken similar steps, ensuring that only genuine leather can carry the name. Even outside Europe, countries such as Brazil and Mexico have adopted rules that protect the term. These regulations recognise the importance of linguistic honesty in safeguarding traditional industries and maintaining consumer trust.

Yet despite this, we still see the word “leather” being used across Europe to describe materials that contain no leather at all. They are often made from fossil-based plastics or coated textiles and then marketed under names such as “vegan leather”, “eco leather” or “plant leather”. These words sound appealing, but they disguise a very different story. They describe materials derived from oil and chemicals, with a lifespan and recyclability far removed from the natural origin and circular potential of genuine leather.

This poses a significant challenge for both transparency and sustainability communication. When a fossil-based imitation uses the same word as a natural, renewable material, it distorts facts and hampers informed decision-making. Genuine leather is a by-product of the food industry and a natural material whose carbon footprint comes from the grass cattle consume, not from oil wells. It is renewable, durable, repairable, and recyclable in ways that synthetic leathers simply are not. Its performance and longevity make it a vital part of a circular economy, helping to keep materials in use for longer. When oil-based materials use the same terminology, it blurs that distinction and misleads consumers who are trying to make responsible choices.

Consumers deserve clarity. Just as the EU is now working to protect the definition of “meat”, there is a strong case for safeguarding the meaning of “leather”. Doing so would not only prevent misleading claims, but also assist drivers, designers, and car manufacturers in making more informed and responsible choices. Additionally, it would reward brands that invest in traceability, responsible sourcing, and certified material stewardship, rather than allowing imitation materials to benefit from the same trusted terminology.

Imagine an EU-wide regulation that reserved “leather” exclusively for genuine material derived from animal hides. Every buyer selecting an interior could immediately understand what they are purchasing, whether it’s leather or a synthetic imitation. This clarity would foster trust and strengthen the relationship between car brands and their customers. It would also create a level playing field across markets, ensuring consistent communication in every European language and jurisdiction.

The automotive industry, in particular, would benefit. As brands compete on design, comfort, and sustainability, consistent and truthful terminology is vital. Drivers increasingly want to know what is inside their vehicles, how it was made, and how long it will last. The ability to use the word “leather” confidently, and to distinguish it clearly from plastics and coated fabrics, would help consumers make decisions based on substance rather than marketing spin.

The European Parliament’s decision demonstrates that the EU is committed to addressing misleading terminology in the food sector. Applying the same approach to materials would foster a wider culture of clarity and responsibility. If words like “steak” and “burger” are worth safeguarding, then so is “leather”. The term embodies heritage, craftsmanship, and verifiable environmental credentials supported by lifecycle data.

Leather deserves recognition for what it truly is: a natural, responsible material shaped through centuries of expertise, not a synthetic imitation made from oil. Clear language helps consumers make better choices, manufacturers communicate with integrity, and society move closer to a truly transparent circular economy.

For the automotive industry, it serves as a reminder that the story of sustainability is still being written in data, not marketing copy. Many so-called “vegan” or “synthetic” leathers are derived from plastics such as polyurethane or PVC. When the fossil feedstock behind those polymers is shown to emit significantly more methane than previously thought, the balance shifts. The new figures make plastics seem more harmful to the planet and bolster the case for materials that extract carbon from renewable, biological cycles.

That includes real leather. Leather begins with grass and sunlight, not oil wells. The carbon in every hide starts its journey in the atmosphere, absorbed by plants and converted into protein through the natural carbon cycle. When tanneries turn that by-product of the food industry into something long-lasting and beautiful, they are not adding new carbon to the environment; they are keeping existing carbon in use for decades.

This distinction between fossil and biogenic carbon is vital. Leather is part of a circular system: cattle are primarily raised for food, hides are a secondary product, and the tannery provides that material with lasting value. If those hides were not utilised, they would quickly become waste. Choosing leather means engaging in that circular flow instead of extracting more carbon from the ground.

It also matters how we measure. Much of the public debate around materials relies on attributional life-cycle data, which is useful for averages but limited when comparing real-world choices. Consequential assessment considers what happens if we choose one option over another. In that context, using a by-product like leather prevents waste and avoids creating more synthetic alternatives. When durability and long service life are included, the environmental benefit increases further.

Automotive leather’s lifespan is measured in decades. It resists wear, sunlight, and temperature changes that quickly age coated fabrics. It can be repaired, recoloured, and kept in service far longer than most plastic substitutes. Every additional year of use spreads the original impact thinner, reducing emissions per kilometre and per occupant.

What the new RCI findings truly emphasise is the importance of honest data. If emissions from fossil feedstocks increase by 20 to 30 per cent, as the study indicates, then many older comparisons between leather and synthetics are outdated. The discussion about sustainable materials must adapt to the evidence.

For One 4 Leather, this confirmation reinforces what we have said from the start: sustainability is about transparency, circularity, and the responsible use of nature’s resources. Genuine automotive leather, responsibly made, naturally aligns with that vision. It forms part of a bio-based system that renews itself, is designed to last, and is grounded in verifiable science rather than shifting claims.

Better data not only updates our understanding but also restores balance to the discussion. When we measure fairly, leather’s role as a responsible, long-term material for car interiors becomes clearer than ever.

Leather is not an industry that developed in isolation. It exists because people consume meat. Every hide processed in a tannery comes from an animal raised for food and dairy. Without the demand for beef, there would be no supply of hides. And without tanneries, those hides would simply become waste; millions of tonnes of organic material that would need to be burned or buried. Instead, the craft of leather-making transforms what nature provides into something useful, beautiful, and durable.

A single hide that might have been discarded becomes leather capable of serving a purpose for decades. Inside cars, it withstands sunlight, movement, and time in a way very few materials can. It’s not single-use nor disposable. It embodies a circular economy, where nothing is wasted and everything has a purpose.

What’s often misunderstood is that cows are not part of the fossil fuel carbon problem. The carbon that moves through cattle starts with grass, not with oil wells or gas fields. The plants that livestock graze on absorb carbon dioxide from the air through photosynthesis. When cows eat that grass and then breathe out, or when their manure breaks down, that carbon returns to the atmosphere in the same form it arrived — as part of the natural cycle between land, plants, and air. This is known as the biogenic carbon cycle, and it has been in balance for millions of years.

Much of the debate centres on methane, which is often used as a weapon against livestock farming. However, methane from cows is also biogenic. It doesn’t remain in the atmosphere indefinitely — it breaks down over about twelve years, returning to carbon dioxide that is then reabsorbed by growing plants. In a stable cattle population, the methane produced roughly equals the methane that decays, and the system reaches equilibrium. This is fundamentally different from the carbon emissions from burning fossil fuels, which release new carbon into the atmosphere that has been locked underground for millions of years and cannot be reabsorbed on human timescales.

If we removed cattle from the landscape, the environmental story would not be the happy ending many imagine. Pastures would vanish. Grasslands would be ploughed or abandoned. The intricate relationship between grazing, soil health, and biodiversity would be broken. In parts of the world, rural economies dependent on animal agriculture would collapse. And practically, we’d still need to feed billions of people, probably by growing more crops, using more fertiliser, and consuming more fossil energy.

Leather plays a vital role in making that system genuinely circular. It’s where agriculture meets craftsmanship and durability. Every leather seat, jacket, or pair of shoes is a tangible example of how humans have learned to utilise every part of what nature provides, transforming potential waste into lasting value. It’s not nostalgia. It’s common sense.

And that leads us to the uncomfortable truth about alternatives. Many so-called vegan or “eco” leathers are not derived from nature at all. They are produced using plastics and fossil-based materials that will never biodegrade and which contribute directly to the carbon problem we are trying to address. To label them as sustainable while dismissing genuine leather, which originates and concludes in the natural carbon cycle, is to misunderstand the difference between renewable and replaceable.

Perhaps the question we should be asking isn’t whether we should stop eating meat or using leather, but how we can continue to do both responsibly. Because when livestock are raised on well-managed land, when tanneries operate under strict environmental standards, and when the resulting leather is used for years instead of months, that system supports the planet, rather than harms it.

Leather isn’t a relic of the past. It’s part of a balanced present, one where using what we already have is the most sustainable choice. Choosing leather isn’t about indulgence. It’s about respect: for the animal, for the land, and for the natural cycles that make life on Earth possible.

Ultimately, sustainability isn’t about invention. It’s about understanding. When we grasp the circle that links the grass, the cow, and the things we create from them, we may realise that we already exist within the solution; we’ve simply forgotten how to appreciate it.