Where Does Leather Come From? Origins, Sources & Making Process

Leather starts life as an animal hide.

But if you’re asking “where does leather come from”, the short answer is that about 99% of leather is derived from common livestock, with only 1% from exotic animals like crocodiles or snakes.

Global material surveys and industry data show that raw hides and skins remain a sizable agricultural commodity, with roughly 9.4 million tonnes of cattle hides produced in 2024, with sheep and goat hides adding several million tonnes more.

Moreover, FAO’s 2024 Statistical Yearbook also documents that hides and skins are produced in nearly every livestock-producing country and remain the primary feedstock for tanneries worldwide.

Given this, the scale of leather production is enormous, as the global leather goods market was valued at around $498 billion in 2024 and is projected to keep growing.

In the post below, we’ll break down what leather really is, which animals and countries supply most leather, how leather is made step by step, the types and grades of leather, and the environmental footprint of leather, along with emerging eco-friendly alternatives.

What is Leather, Really?

Leather-making is one of humanity’s oldest crafts.

Leather is a material made from animal hide (skin) that has been chemically treated to prevent decay and increase durability.

Genuine leather is valued for qualities that synthetics can’t quite replicate: its natural strength, breathability, and the distinctive patina it develops over time.

By contrast, synthetic or “vegan” leathers are typically made from plastics or plant-based fibers, and while they can mimic the look of leather, they aren’t derived from animal hides.

Moreover, the archaeological evidence suggests tanning practices date back more than 7,000 years, with references as early as 4000 BCE.

Early communities dried, smoked, or oiled animal hides to preserve them, later refining the process into formal tanning. For example, Ancient Egyptians used vegetable tanning with tree bark as early as 400 BCE.

Today, modern chemistry and technology have streamlined the process, but the essence remains unchanged, taking raw, perishable hides and turning them into a strong, versatile material that endures.

The Animal Origins of Leather

The origin of leather is inseparable from livestock farming.

Leather is not typically the main product of animal agriculture; it is mostly a by-product of the meat and dairy industries.

The single largest source is cowhide, which accounts for about two-thirds of global leather production.

This dominance comes from the sheer scale of cattle farming worldwide, where hides are preserved and “upcycled” rather than discarded.

Here’s a breakdown of animal sources for leather (global production share):

Animal Source	Global Leather Production Share
Cattle hides	69% (the largest source, linked to the beef and dairy industries)
Sheep	13% (often marketed as sheepskin when the wool remains attached)
Pigs	6%
Goats	11%
Other species (exotics)	<1%

Each year, for example, the leather industry globally processes on the order of 7 million tons of hides that might have ended up in landfills by converting them into useful leather goods.

This makes leather production, in part, a recycling process that reduces waste from agriculture.

The Leather-Making Journey – From Hide to Material

In Fez, Morocco, the sight of traditional tanning pits, stone vats filled with natural dyes and tanning solutions, offers a glimpse into one of the world’s oldest leather-making techniques still in practice.

While modern tanneries now rely on advanced machinery and chemical processes, the core steps of curing, tanning, and finishing remain much the same as they were centuries ago.

However, turning an animal hide into finished leather is not a simple task. 

A fresh hide is essentially raw tissue that will quickly decay if untreated. To prevent this, it must first be preserved and then carefully processed into a durable material that resists decomposition.

Given this, the journey from raw hide to finished leather follows a series of deliberate stages designed to stabilize, strengthen, and refine the skin into a versatile material.

Here’s a step-by-step journey of how leather is made:

Step 1: Curing the Hide

Immediately after an animal is processed for meat, its hide is removed and preserved to stop it from decomposing.

This first stage is essential because an untreated hide can begin rotting within just a few hours. Curing removes excess blood and moisture while slowing bacterial growth.

Common curing methods include:

• Heavy salting to draw out moisture and inhibit bacteria
• Air-drying in controlled environments
• Drying in low-temperature ovens
• Chilling or refrigeration
• Immersion in brine solutions

With these methods, water content is reduced, halting bacterial activity and ensuring the hide remains intact long enough to reach the tannery for further processing.

Step 2: Soaking and Liming

At the tannery, cured hides arrive stiff and salt-crusted.

To prepare them for tanning, they are soaked in large drums of water. This process rehydrates the hides, washes away dirt, salt, and blood, and restores their softness.

Also, mild detergents or enzymes are sometimes added to speed cleaning, helping the hides return to their natural pliable state.

Key methods in this stage include:

• Soaking: Rehydrating and cleaning the hide to remove impurities
• Liming: Bathing in an alkaline lime solution to loosen hair and swell the fiber structure
• Fleshing: Mechanically scraping away hair, fat, and tissue with rollers or knives

By the end of this step, the hide has become a pale, swollen, hairless sheet of collagen, clean and pliable, and ready for the critical tanning process that will preserve it permanently.

Step 3: Leather Tanning (Vegetable & Chrome)

Tanning is the central step that transforms a perishable hide into long-lasting leather.

In this stage, the hide is treated with special chemicals (tannins) that bind to the collagen proteins and prevent them from decomposing.

In effect, leather tanning “preserves” the hide while keeping it flexible, durable, and resistant to water and heat.

Main tanning methods include:

• Vegetable tanning

This is a traditional, slow method that uses natural plant extracts such as tree bark and oak galls. Hides are soaked in vats or pits for days or weeks, absorbing these tannins.

The result is firm, brown-toned leather that develops a rich patina over time, ideal for belts, saddlery, and luxury items.

• Chrome tanning

The dominant modern method uses chromium salts (usually chromium sulfate). It takes about a day and produces soft, pliable, water-resistant leather.

The untinted product is known as “wet blue.” Around 90% of all leather worldwide is chrome-tanned, making it the standard for shoes, fashion, and automotive interiors.

• Innovations (chrome-free)

Alternatives like aldehyde tanning (“wet white”), used in automotive and baby shoes to avoid allergens, and zeolite-based tanning (e.g., “Zeology”) aim to reduce environmental impact.

These newer methods replace heavy metals with organic or mineral agents, producing sustainable, high-quality leathers.

While chrome tanning is efficient, it has raised environmental concerns due to heavy-metal waste.

Modern tanneries now use treatment systems to reduce pollution, while vegetable tanning, though more natural, requires significant time and water.

Together, these evolving methods reflect how chemistry and innovation shape the future of leather production.

Step 4: Finishing and Dyeing

After tanning, the leather is stable but not yet ready for use.

At this stage, it is often thick, stiff, and uneven, so further processing is needed to refine it into a workable material.

Also, tanned hides are partially dried, and in the case of thicker cowhides, may be split into layers.

That said, the grain side is reserved for high-quality applications, while the lower “split leather” can be used for suede or coated products.

Key steps in this stage include:

• Dyeing

Leather is immersed in large drums with dyes to achieve a wide range of colors. Vegetable-tanned hides naturally lean brown, while chrome-tanned hides begin bluish gray.

Aniline dyes soak into full-grain leather, preserving its natural look, whereas pigmented coatings provide a more uniform finish.

• Finishing touches

To enhance both performance and appearance, tanneries apply oils or waxes, polish or buff the surface, emboss patterns, and add protective coatings.

Finishes can range from water-resistant sealants to glossy patent layers. The hides are also mechanically softened, then trimmed and graded by quality.

By the end of this stage, sheets of leather in varied thicknesses, textures, and colors are ready to be cut and shaped into everyday products, from leather jackets and furniture to bags and automotive interiors.

This final step completes the long transformation of raw hide into a versatile, enduring material.

Types of Leather Based on Origin

When discussing types of leather sources, we can refer to different categorizations.

One way is by the part of the hide and finish, for example, full-grain vs. top-grain vs. split leather, which relates to leather quality.

Another way is by the animal source (cow leather vs. goat leather vs. exotic leather, etc.).

Here are the most common leather types by quality and part of the hide:

1. Full-Grain Leather

This is the highest-quality leather, taken from the outer layer of the hide. It retains the natural grain, markings, and fiber strength, showing any scars or imperfections the animal had.

Full-grain leather is extremely durable, develops a rich patina over time, and can last for decades. It’s commonly used in premium boots, belts, couches, and luxury bags.

However, the main drawback is cost, and some natural blemishes may be visible, though many consider these features part of its charm.

2. Top-Grain Leather (Corrected Grain)

Also from the upper layer of the hide, top-grain leather is often sanded or buffed to remove imperfections and sometimes embossed with a uniform pattern.

It is slightly thinner, more flexible, and generally more affordable than full-grain leather.

While durable and stain-resistant, it develops less patina, but its smooth, consistent appearance makes it ideal for jackets, handbags, and car upholstery.

3. Split Leather and Suede

When thicker hides are split, the lower layer is called split leather. Suede is created from this split side and is known for its soft nap.

Whereas split leather can also be coated with a polyurethane layer to mimic grain (bicast leather).

While economical and soft, split leather is less durable than grain-side leather and may crack over time if the surface coating deteriorates.

4. Bonded Leather

Bonded leather is made from shredded leather scraps mixed with a polyurethane or latex binder and applied to a fabric backing. It may contain 10–50% actual leather, with the rest being synthetic materials.

While inexpensive and a way to recycle waste, bonded leather is far less durable, prone to peeling, and does not develop a natural patina.

Environmental or Ethical Pros and Cons

When comparing leather types, here’s a quick overview of environmental or ethical pros and cons:

Leather Type	Pros	Cons
Full-Grain Leather	Highly durable; lasts decades → less frequent replacement; natural material can biodegrade (especially vegetable-tanned)	Expensive; comes from animal hides (ethical concern for some); often involves chemical processing
Bonded/Processed Split Leather	Reuses waste pieces → reduces leather waste	Incorporates plastics → less biodegradable; wears out faster → more frequent disposal
Exotic Leather	Can provide economic incentive for species farming	Ethical concerns; potential harm to wild populations; controversial in the fashion industry
Synthetic/Vegan Leather	Animal-free alternative	Often made from plastics → significant environmental footprint; not biodegradable

So, each type has its considerations, but across the board, a key idea is that high-quality real leather, while resource-intensive to produce, tends to make products that last a very long time. In contrast, cheaper leather alternatives might not endure, leading to a different kind of environmental cost.

Environmental Impact and Sustainability

Since most leather comes from cows and other livestock, it inherits the environmental challenges of animal agriculture.

Cattle farming, for example, is highly resource-intensive; it requires large amounts of land, contributes to deforestation for grazing or feed crops, and generates significant greenhouse gases.

In fact, cows alone produce methane, a potent contributor to climate change.

A recent life-cycle assessment found that the livestock stage, before leather production, is the largest contributor to the carbon footprint of cow leather. This means the majority of leather’s climate, water, and nutrient impacts are upstream, embedded in the raising of the animals.

This upstream stage accounts for the majority of greenhouse gas emissions associated with leather, while later stages such as tanning, dyeing, and finishing contribute comparatively less.

The second major impact comes from tanning and manufacturing. Leather production requires substantial water and chemical use.

On average, producing 1 kg of leather requires about 17,100 litres of water. Since one cow gives around 6 kg of leather, a single hide uses roughly 104,000 litres of water.

This water, often chemically laden, must be treated properly; without adequate infrastructure or regulation, it can pollute rivers and soils, harming communities and ecosystems.

Additionally, tanneries rely on energy, frequently fossil-fuel-based, for heating water and drying hides, further contributing to carbon emissions.

In recent years, there’s been a strong push to improve sustainability in the leather industry.

Here are some key developments and practices:

1. Better Waste Management

Modern tanneries, particularly in developed countries, treat wastewater using closed-loop systems, filtration, and safe sludge disposal to minimize pollution.

Tanneries certified by the Leather Working Group (LWG) adhere to strict criteria for effluent treatment, traceability, and chemical management.

Many major brands now source from LWG-rated tanneries (Gold/Silver), reducing water use per hide and ensuring proper chromium recovery.

2. Chrome-Free and Low-Impact Tanning

Alternatives to traditional chrome tanning are gaining traction.

Vegetable tanning avoids heavy metals, while aldehyde-tanned leather (“wet-white”) is used for baby shoes and automotive applications.

Moreover, zeolite-based tanning methods, such as Zeology, offer comparable performance without harmful metals, producing biodegradable, safer leather while protecting tannery workers from chemical exposure.

In some cases, zeolites can even remove contaminants in endothermic conditions, which other adsorbents may struggle with.

3. Energy and Carbon Initiatives

Some tanneries are adopting renewable energy sources, more efficient machinery, and process improvements to lower carbon emissions.

On the farming side, programs link leather buyers with regenerative ranches, promoting rotational grazing and reduced net emissions.

A “deforestation-free leather” movement, led by Textile Exchange and Leather Working Group (LWG), is emerging, ensuring hides do not come from cleared rainforest land.

4. Waste Reduction and Recycling

Leather scraps are increasingly upcycled into bonded leather, collagen-based products (gelatin, adhesives), or leatherboard materials.

Old leather goods can be refurbished or reconditioned, extending product life. Dechromed tannery sludge can also be safely reused in bricks or landfills, helping minimize waste.

5. Bio-Based and Plant-Based Alternatives

Innovative plant-based leathers use agricultural by-products, such as pineapple leaves (Piñatex), apple peels, cactus, or mycelium (mushroom leather like Mylo).

These alternatives reduce reliance on livestock and animal hides, lower methane emissions, and repurpose waste.

While many still contain polyurethane for durability, their immediate carbon footprint is generally lower than that of cow leather. 

6. Life Cycle and Longevity

High-quality leather’s durability is a key sustainability advantage. A leather item can last 20 years or more, be repaired, reconditioned, or re-soled, reducing the need for frequent replacements.

In contrast, cheaper faux leather often cracks or peels within a few years, increasing overall environmental impact.

With all these impacts, the industry is responding with cleaner wastewater treatment, alternative tanning methods, and greater transparency. And brands increasingly source from vegetable-tanned, chrome-free, or LWG-certified tanneries.

Also, the push for sustainability is growing, driven by both regulators and consumers seeking responsibly made leather.

Frequently Asked Questions (FAQs)

Conclusion

Leather is ultimately a product of nature, craftsmanship, and innovation.

We’ve discussed where does leather comes from, mainly the hides of cows and other livestock, and how it has been part of human life for thousands of years.

Understanding this origin gives us a new appreciation when we look at a leather jacket or sofa: each piece has traveled from a farm, through a tannery, and into the skilled hands of makers.

So, the key takeaway is that leather starts with animal hides, is transformed through careful tanning, and becomes different types with unique qualities.

Today, leather stands at a crossroads.

On one side, it remains a traditional material with timeless appeal and durability,  a symbol of quality that, when sourced responsibly, makes practical use of hides that would otherwise go to waste.

On the other side, rising ethical and environmental concerns are reshaping how it’s made, from cleaner tanning processes to the rise of vegan and bio-based alternatives.

Given this, the industry is adapting by blending old techniques with new science, from vegetable tanning revivals to chrome-free innovations and lab-grown materials.

Thus, leather’s future lies in balancing its long-standing reputation for quality with innovations that align with modern values, ensuring it continues to be part of our lives for years to come.