The natural materials we use for LANG.S shoes
Our mission to help the planet become cleaner and safer through our shoes starts with picking the right materials. That's why we carefully select every element that goes into the products we make.
From biodegradable leather, tanned either vegetally or chrome-free, to our recycled linen uppers and natural rubber soles, we're committed to the long-term impact our products have on your life and the planet.
Why do the materials in barefoot shoes matter?
Thin sole
The thin natural rubber sole allows the foot to feel the ground and adjust its balance naturally with every step.
Lightness & Comfort
Natural fibres like bamboo and organic cotton allow the foot to breathe freely, without the unnecessary weight of traditional shoes.
Flexible Sole
A rigid material locks the joints, while flexible materials allow the foot to bend and feel the ground exactly the way it was designed to.
What Makes Our Shoes Different?
The materials we use
Discover the story behind LANGS materials
Vegetable-tanned
Leather
A rarity in today's world – only 1 in 10 pairs of shoes globally uses this centuries-old method. Tanned with tree bark and fruit peels, this leather develops a unique patina over time and ages with character.
- Tanned with natural tannins – Tree bark and fruit peels, no synthetic chemicals
- Handcrafted, artisanal – Each pair takes up to 60 days of work
- Biodegradable – One of the most sustainable options available
- Develops a unique patina – Every pair earns its own character over time
- An increasingly rare material – Fewer and fewer artisans practice this traditional craft
Chrome-Free
Tanned Leather
A modern alternative to traditional tanning, made through a process that replaces harsh chemicals with vegetable tannins and non-toxic agents. The leather is durable, gentler on your skin, and far more biodegradable.
- No harsh chemicals - Safer for the environment and for your skin
- Biodegradable - Breaks down naturally, unlike chrome-treated leather
- Flexible and durable - You don't sacrifice comfort for longevity
- Safer production process - Protects both workers and wearers
- Premium look - Fine texture that ages beautifully
Bio-based
vegan leather
An elegant alternative to traditional leather, made from up to 69% plant-based raw materials (viscose from sustainably managed forests and bio-derived polyurethane from corn and wheat). No animal products, with the same refined look and durability.
- No animal products – Zero cruelty, just eco-friendly innovation
- Made from plant-based raw materials (69%) – European corn and wheat, GMO-free
- Breathable and flexible – Unlike petroleum-based synthetic vegan leathers
- Easy to maintain – A quick wipe with a damp cloth and they look new again
- Lower ecological impact – More sustainable than petroleum-based alternatives
Water-repellent
suede
Soft yet durable, suede combines elegance with functionality. Our water-repellent treatment protects it from splashes and moisture while preserving its fine texture and natural breathability for years.
- Breathable and lightweight – Comfortable in any season
- Water-repellent treatment – Resists water splashes and moisture
- Scratch-resistant – Perfect for kids who play everywhere
- Timeless, elegant design – A classic look that doesn't go out of style
- Durable with proper care – Correct maintenance keeps it looking sharp for years
Bamboo lining
Fast-regenerating bamboo fibres, extremely soft and breathable. Natural antimicrobial properties prevent odours and bacteria, making it ideal for an active lifestyle. Biodegradable, durable and gentle on sensitive skin.
- Fast-regenerating material – Bamboo grows extremely quickly, minimal environmental impact
- Highly absorbent – Keeps feet dry even during intense activities
- Natural antimicrobial properties – Prevents bacteria and unpleasant odours
- Hypoallergenic – Gentle on sensitive skin, no irritation
- Extremely soft – Pleasant to the touch, maximum comfort
Recycled linen
Discarded textiles, turned into durable shoes. Recycled linen gives used clothing a second life, requiring minimal processing and reducing water and energy consumption. It gets softer over time, giving each pair a unique character.
- Made from reused textiles – Old clothes turned into new shoes
- Breathable and absorbent – Keeps feet cool in any season
- Stronger than cotton – Superior wear resistance
- Gets better with use – Becomes softer and more comfortable over time
- Distinctive texture – A modern look with a subtle visible grain
Boiled wool
Boiled and compressed wool fibres become denser, tougher and more absorbent while keeping their natural breathability. Ideal thermal protection for winter and cool days, biodegradable and with antimicrobial properties.
- Natural thermal regulation – Keeps feet warm in winter
- Breathable and absorbent – Absorbs moisture and allows air circulation
- Dense and durable fibres – The boiling process increases durability
- Natural antimicrobial properties – Prevents bacteria and odours
- Biodegradable – Breaks down naturally, a responsible choice for the environment
Recycled mesh
We turn plastic bottles into high-performing shoes. Made from recycled PET, this durable and highly breathable material gives waste a second life, helping reduce ocean pollution and CO2 emissions.
- Made from recycled plastic – Each pair removes PET bottles from oceans and landfills
- Highly ventilated – Great for intense activities and warm weather
- Light and flexible – Minimal weight, maximum comfort
- Resistant to wear – Holds up over time without tearing or stretching easily
- Reduces demand for new materials – Fewer resources pulled from nature
Organic cotton
Grown without pesticides or synthetic fertilisers, organic cotton requires less water than conventional cotton and offers natural breathability. Great for sensitive skin and comfortable daily wear.
- Grown without pesticides or synthetic fertilisers – Sustainable farming, no toxins
- Breathable and hypoallergenic – Great for sensitive skin, prevents irritation
- Durable and biodegradable – Holds up in use, breaks down naturally afterwards
- Naturally absorbs moisture – Keeps feet dry
- Lower water consumption – Fewer resources than conventional cotton
Natural rubber
A natural material that naturally absorbs shocks, is anti-slip and biodegradable, with no petrochemical substances.
- Natural shock absorption – Excellent protection and anti-slip grip
- Biodegradable – Breaks down naturally, no petrochemical residue
- Certified production – Strict standards for worker protection
- Positive environmental impact – Good for your feet and for the planet
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