Our Sustainability Skills symbols are a visual tool designed
to clearly highlight the more sustainable and responsible aspects
of each product.
Sustainable Skills
“We want to distance ourselves from mainstream greenwashing and share how our ideas are implemented.” — Michael Oehler, CEO
Our Sustainability Skills symbols are a visual tool designed to clearly highlight the more sustainable and responsible aspects of each product—covering materials, production methods, components, health impact, and longevity.
At the core of this system is transparency—a matter of trust we strive to earn not through certifications, but by openly sharing our sustainability journey.
You’ll find these symbols on every product page, thoughtfully paired with the features of each individual style.
Undyed
The water consumption in the production of leather is significantly lower if there is no dyeing after tanning.
For our vegetable tanned leathers waw, lxp, wax and sat, our new undyed „OFF“-colour has a naturally light beige-brown tone. Exposure to sun and oxygen will deepen its appearance over time.
Our metal-free leathers, synthetically tanned through a chrome-free process, have a milky-white base colour when undyed. These include our white alb, elk, waw, bat, wax, and vst.
Vegetable tanned
Plant based tanning is an ancient art. The chief active agent being tannin, found naturally in oak bark & rhubarb roots and elsewhere. Since the middle of the 19th century the use of chrome in the tanning process has become widespread in the shoe industry. Leather used for bags, being more supple and less stressed has however continued to be vegetable tanned. With the environmental movement in the nineties, vegetable tanning was redeveloped for shoe making. These traditional tanneries in Tuscany provide our leather at Trippen. Vegetable tanned leather ages charismatically; the colours changing, becoming brownish.
The leather working group
Is an international association of labels, producers, retailers and NGOs within the leather industry, the goal being to monitor and reduce the impact of leather production on the environment. The environmental cost of each product is estimated through a detailed analysis of its complete life cycle: raw materials, its production, use and subsequent disposal. This is called an LCA. Almost all our leather is sourced from Italian tanneries belonging to the LWG and dedicated to optimising their environmental standards.
Metal Free
Chrome tanning became universal during the 20th century, driven by the chemical industry. Although the process has become cleaner and safer during the last decades, the danger of poisonous chrome III being released into the environment through negligence or waste disposal remains.
Therefore, alongside our plant tanned leather, leather tanned with formaldehyde which does not brown with age is used for very light colours.
Adhesive free
We employ almost exclusively water based solvents and adhesives: Some manufacture procedures still require the use of chemical adhesives to meet the necessary standards of durability and longevity.
Plastic component free
Our designation of a plastic free shoe is one where no composite additional parts from plastic are employed. These are normally used to provide shape and structure. Through innovative design and production techniques we have succeeded in disregarding these extra plastic components.
Re Treads
The unique longevity of our shoes arises from the sewn on, highly durable rubber soles which can be repeatably removed and renewed, coming as close as possible to a completely adhesive free shoe.
Our diversity of design means some models are easier to resole than others, but generally it is always possible. The old rubber soles are collected for recycling.
Recycling
The old rubber soles from the repair shop are collected to be worked into granules that are then used for sport pitches and pathways. The waste from our cut out leather brand soles is collected and sent back to the manufacturer to be recycled into new material. The old rubber soles are ground to a granulate, which is processed into new soles in a mixture of 50% granulate, 25% synthetic rubber and 25% natural rubber.
Natural (Indian) rubber
Natural gum rubber is another substitute to treated rubber. Natural rubber is not vulcanized, therefore remaining biodegradeable. It is obtained from the rubber tree (Hevea brasiliensis), grown in South East Asia and South and Central America. Natural rubber has many uses from condoms, adhesives to car tyres. Not to be confused with synthetic rubber, derived from petrochemical sources.
Native timber
Wooden soles offer a sustainable alternative to rubber. Through the correct selection of the wood involved, it can be adapted to many different designs. Alder wood is our preferred choice, being both tough and workable. The wood is completely untreated, pleasant to wear and healthy for the feet.
Vegan
A vegan shoe has many different interpretations. For us this means, that we don’t use materials from animals origin and no products for them are used animal experiments.
Our latest circular and Zero Waste material innovations
form the core of our t-project line.
Innovative Materials
Practicing Zero Waste in fashion means adopting strategies that reduce or eliminate waste throughout the entire life cycle of clothing and accessories. The focus is on minimizing waste, particularly during the production and disposal stages.
From the very beginning, longevity, the interchangeability of shoe components, and the Zero Waste concept have been key aspects of our design process. Because of this, we have consistently collected post-consumer soles from our resoling service, B-quality soles, leather scraps, and prototypes over the years. These materials now serve as the foundation for our latest circular and Zero Waste innovations, which form the core of our T-Project line.
Smaller leather cutouts have been transformed into jewelry or a smooth, new leather material by gluing and sanding them together (Aura and Ambience). Larger leather scraps from bag production have been reassembled into small, intricate lines for models such as Clearcut and Enfold. Prototypes, an unavoidable byproduct of the design process, have been given new life in the Proto style. Additionally, since August 2023, the 18 tonnes of worn-out and B-quality soles we have collected over the years have been repurposed into our recycled soles, allowing them to take another step forward.
Wooden soles were our first stage of experimentation -
a renewable material sourced from Europe.
Wooden Soles
Wooden soles were our first stage of experimentation—a renewable material sourced from Europe. The choice of wood varies by design, with alder, beech, and poplar being the most commonly used. Alder, known for its durability, is ideal for most flat wooden soles. Poplar, exceptionally light and delicate, is reserved for high platform soles. Beech, dense and sturdy, is perfect for high-heeled designs.
Our wooden soles remain untreated, allowing them to naturally absorb moisture. This makes them not only comfortable to wear but also beneficial for foot health.
However, wooden soles are not suitable for winter. This led to the challenge of creating rubber soles that are both long-lasting and recyclable.
We have designed a series of rubber soles
with ease of repair in mind.
Rubber Soles
Developing soles that are suitable for winter, durable, and recyclable was a major challenge.
After careful consideration, we reluctantly chose petroleum-based rubber as the most durable option. We developed the easily replaceable “Closed” sole and introduced a resoling service. Since then, we have designed a series of rubber soles with ease of repair in mind.
The repair service has been a success: on average, we resole 20 pairs of shoes per day in Germany and nearly the same amount in Japan.
Over the years, we have collected many tons of replaced soles, which we have recently begun repurposing into recycled soles. Our rubber soles are produced in Italy.
Closed Line
Closed 1994
The Closed collection is built to last. These shoes feature an anatomically shaped cork insole and a patented design technique that allows them to be taken apart, repaired, and refreshed. The soles aren't glued but stitched, making them fully replaceable and eco-friendly. Each pair includes a removable, vegetable-tanned leather insole.
Awards: Baden-Württemberg International Design Award, I.D. International Design Award, Good Design Award, German Federal Ecodesign.
Care instructions
See all Closed Line soles variations
Cup Line
Cup 1998
The Cup collection is all about the barefoot feeling. Designed to be ergonomic and ultra-light, it features a two-part sole that cushions the heel and ball like protective shells. The upper is soft and flexible, while the insole—moulded from thick, vegetable-tanned leather—follows the foot’s natural shape for arch support and structure. The rubber sole is stitched on with strong thread, giving it a sturdy, handmade finish.
Awards: Good Design Awards in Japan and the USA, Red Dot Award.
Care instructions
See in the Shop
See all Cup Line soles variations
Penna Line
Penna 2003
The Penna collection rethinks construction. Using moccasin-style stitching, the uppers hold their shape without the need for reinforcements—making plastic-free designs possible. Soft leather is sewn directly onto flexible sole units, eliminating almost all solvent-based adhesives. The trampoline-like sole naturally absorbs shock, while the felt layer beneath the leather sock lets the foot form its own insole over time. Rooted in traditional craftsmanship, each pair may vary slightly—subtle differences that make every shoe unique.
Awards: 2004 Good Design Award.
Care instructions
See in the Shop
XO Line
x+os 2006
Named after its sole shape—a cross and two ovals—the x+os collection is all about smart structure and lightweight design. A narrow wedge reduces weight, while the cross under the heel ensures lateral stability. At the front, two ovals follow the natural shape of the foot to support the ball of the foot and the toes. Similar in construction to the Penna line, x+os stands out with a more feminine, refined look, thanks to its 4.5 cm high sole.
Awards: iF product design award, German Shoe and Leather Goods Award, nominated for German Design Award 2008.
Care instructions
See in the Shop
Box Line
Box 2008
The Box collection explores the idea of a modern platform sole. The walking surface is reduced to two 4 cm high cube-like contact points, giving the sole its sculptural look. Air chambers within the sole and the rubber’s natural cushioning provide excellent shock absorption. A full-grain leather insole supports the structure and ensures a secure, comfortable fit.
Awards: 2009 Good Design Award, nominated for German Design Award 2011.
Care instructions
See in the Shop
See all Box Line soles variations
Happy Line
Happy 2008
The Happy collection blends the look of high heels with our standards of comfort and function. The split design creates an optical illusion—appearing like an 6 cm high heel, but actually offering the comfort of a platform with just a 3 cm height difference. Durable, flexible, and recyclable, the rubber sole includes air chambers that reduce weight and enhance shock absorption. An internal construction stabilizes the sole, combining height with ease of wear.
Awards: 2009 Good Design Award, nominated for German Design Award 2011.
Care instructions
See in the Shop
Splitt Line
Splitt 2012
The Splitt collection was designed as a sporty, winter-ready alternative to x+os. Its modern wedge sole has a 6 cm heel and built-in air chambers to reduce weight. Cut-out gaps in the sole add flexibility and improve the natural rolling motion while walking. Inspired by winter road grit, the textured surface offers excellent grip—and gives the collection its name.
Awards: 2013 Good Design Award, iF product design award 2014, SpecialMention 2015 German Design Award.
Care instructions
See in the Shop
Sport Line
Sport 2012
The Sport collection builds on the Box sole with a focus on performance and everyday wear. Embedded air chambers reduce weight and offer excellent shock absorption, while a full-grain leather insole stabilizes the construction for a secure fit. For added grip, the sole’s profile—cut in two and reassembled—is inspired by the texture of standard rubber sheeting, enhancing slip resistance and adding a distinctive design element.
Awards: 2013 Good Design Award, nominated for German Design Award 2015.
Care instructions
See in the Shop
Gritt Line
Gritt 2014
The Gritt collection introduces a new wedge sole with an inner construction designed to offer both function and comfort—true to the tradition of the Closed collection, but with added height. As with Closed, the rubber sole is stitched to the intermediate sole and upper, not glued, making it easy to detach and replace. These styles come with an anatomically shaped cork insole, covered in vegetable-tanned calf leather.
Care instructions
See in the Shop
Wave Line
Wave 2016
The Wave collection evolves the design of the Cup sole. Its continuous sole design protects against moisture, while the innovative tread pattern ensures reliable grip.
Care instructions
See in the Shop
Swan Line
Swan 2018
The Swan collection is defined by its sporty, minimalist style and signature undulating curved sole. Slightly offset contact points and elegant, flowing lines highlight the sole’s graceful design. A vegetable-tanned leather insole ensures optimal comfort. With its clear style and functional innovation, Swan offers a fresh take on Trippen’s time-honored tradition.
Care instructions
See in the Shop
Geisha Line
Geisha 2018
With its 11 cm sculptural platform sole, the Geisha collection takes the fusion of high heels, function, and comfort—first explored in the Happy collection—to a new level. The broad platform provides secure support despite the height. The cubist sole is stitched to the upper leather with thick yarn only at the front and back, creating a distinctive open space in the middle that adds a unique aesthetic.
Care instructions
See in the Shop
Zero Line
Zero 2019
The Zero collection uses natural rubber instead of conventional rubber, with a sole shape designed to reduce rapid wear on the heel edge. Its extended sole creates elegant, flowing lines. We aimed to find a natural alternative to traditional rubber while continuing to explore sustainable solutions.
Care instructions
See in the Shop
From day one, our primary choice has always
been vegetable-tanned leathers.
Leather
Selecting premium leather goes beyond appearance—it’s about the tactile experience: feeling, stretching, and even smelling the hides to truly understand their essence.
At Trippen, we choose what’s most natural. Our leathers are only minimally pigmented, and treated with wax to give them a special depth. As a result, small marks and scratches that may appear are simply part of the animal’s natural skin, adding authenticity to the leather’s surface. This is what sets it apart from coated, printed, or standardized materials.
From day one, our primary choice has always been vegetable-tanned leathers, sourced from long-standing partnerships with small tanneries in Tuscany, Italy. Over 90% of our leathers are *LWG Gold certified. Unlike conventional methods that use chromium salts, vegetable tanning employs plant-based materials, such as tree bark, leaves and fruits to preserve and treat the leather. This method preserves the leather’s natural structure and allows it
to age beautifully *Leather Working Group.
Vegetable-tanned calf leather that is dyed through and treated with wax finish. Light pull-up effect. Tumbled for softness. Colour and texture may vary as a result of the tumbling process. The bi-leather colours have been dyed twice and thus display a different colour edge. The colour will get darker with wear and exposure to sunlight. The dye can stain your feet. Gets softer with use and may stretch.
Acf is a chrome-free, vegetable tanned calf leather with oiled surface and
pull-up effect. Marks and irregularities in color are natural characteristics of the leather.
The colors will grow darker with wear and exposure to sunlight. It gets softer
with use and may stretch.
The new Albino Leather comes from New Zealand farmed deer and is tanned metalfree in a tannery in the Toscana. We have managed to avoid chrome tanning and still achieve the softness of our former elk leather. We have designed a small collection of simple „seamless“ models for this leather. Albino can be also used for all other elk models.
Vegetable tanned calf leather, tumbled for softness. Comes in one dark brown-greyish colour shade and two versions: plain and with a textured reptile structure. Gets softer with wear and may stretch substantially.
Chrome-tanned calf leather with oiled surface and pull-up effect. Marks and scratches are natural characteristics of the leather. Colours will not get darker gradually or with exposure to sunlight. Gets softer with use and may stretch. Because of the chrome-tanning it is softer and more resilient than other leathers, but not recommended for people with chrome allergies.
Half vegetable, half synthetic tanned calf leather. To make this thick leather soft it undergoes a tumbling process, which may lead to an irregular colouring and surface texture. The colour will darken gradually and with exposure to sunlight. The leather gets softer with wear and may stretch. The vibrant colours are especially sensitive to staining, moisture and scratches.
Vegetable-tanned calf leather with a covering coat of colour. It undergoes a tumbling process, which may lead to an irregular colouring and surface texture. Rather delicate due to the material’s lack of density. Should not be exposed to moisture or heat.
For certain models of our t-project recycled-series, which are designed to use very small pieces, we work with the remains of our bag leather: bgl leftovers.
Chrome-tanned calf leather with a covering coat of colour. Colours will not get darker gradually and with exposure to sunlight. Softer and more resistant to changes in colour, water stains and general signs of wear and tear than other leather. Not recommended for people with chrome allergies.
Chrome-tanned calf leather with a covering coat of colour. Especially for the wooden shoes of higher thickness than regular »box« leather and only available in »black«. Softer and more resistant to changes in colour, water stains and general signs of wear and tear than other leather. Not recommended for people with chrome allergies.
Vegetable-tanned buffalo leather with an oiled surface and irregular texture. The colour will darken gradually and with exposure to sunlight. The leather gets softer with wear and may stretch. Sturdier than other leathers as a result of the material’s relative thickness.
Long-haired Tibetan goatskin. Chrome-tanned and thus not recommended for people with chrome allergies.
Cavallin is an Italian cow leather with natural cow hair structure on the surface. The hair is also dyed in the dyeing process.
This soft, summerly cotton fabric is hand dyed which leaves each piece with unique batik patterns and color gradients. The fabric’s raw edges underline the casual grunge look.
Vegetable-tanned, tumbled cowhide with a strictly linear pattern embossed in the leather. Also attractive when combined with other leather types.
Synthetically tanned calf leather. A uniform shade of grey forms the basis. The irregular nuances, sprayed on by hand, are unique to each shoe. Gets softer with use and may stretch.
Chrome-tanned sheepskin distinguished by its long rows of crescent-shaped incisions. Rather delicate due to the incisions and the material’s lack of density, and not tear-proof. Due to the tanning not recommended for people with chrome allergies.
A vegetable-tanned deerskin which rivals our elk leather for softness, and whose surface is even slightly more robust thanks to the tanning process.
Vegetable-tanned cow hide, tumbled for softness. The surface is coated with a thin layer of silvery, gleaming wax. The colours underneath remain clearly visible. The wax finish is relatively resilient, but may wear away with intense friction.
Vegetable-tanned calf leather that has been dyed twice and thus features a different coloured edge. The colour will darken gradually and with exposure to sunlight. The dye can stain your feet. The leather gets softer with wear and may stretch.
Vegetable-tanned, aniline-dyed calf leather which has been tumbled for softness and dyed twice and thus features a different coloured edge. Colours and surface texture may vary. The colour will darken gradually and with exposure to sunlight. Gets softer with use and may stretch substantially.
Chrome- or synthetically-tanned elk or deer leather with a covering coat of colour. Extremely soft, flexible and pleasant to wear. Elk has a highly textured, irregular surface, which is sensitive to scratches, abrasions and stains. The dye can stain your feet. Gets softer with use, may stretch substantially and generally ages faster than other leather. Not recommended for people with chrome allergies.
Following the principles of “upcycling” made from used bicycle tires and vegetable-tanned lining.
Vegetable-tanned, tumbled and washed cowhide with a flower pattern embossed in the leather. The rich variety of the floral ornamentation recalls a wallpaper pattern from the Arts and Craft movement.
Vegetable-tanned, thin buffalo leather with pull-up effect and extremely shiny surface that is coloured by hand. The manual colouring gives the material a very vivid look, however, the colour may leave marks on the inside. The leather will darken gradually and with exposure to sunlight. The leather gets softer and can stretch with wear. The vibrant colours are especially sensitive to staining, moisture and scratches.
Soft, vegetable-tanned leather with white wax glazing that does, however, easily wear away with use. The colour will darken gradually and with exposure to sunlight. The leather gets softer with wear and may stretch.
As a new color for our t-project styles „Aware“ and „Beware“ we have chosen post-consumer jeans. The material can be very different in the shade of
blue, brightness and strength. For the selection of the jeans we focus on pure cotton quality and source them from sorted out clothing donations in Berlin.
Kenya leather is vegetable-tanned calf leather with a covering coat of colour, an additional glossy varnish and a light pull-up effect.
Vegetable-tanned calf leather laminated with coloured foil. Like all leathers with shiny surfaces, it is sensitive to scratches and other surface damage. The leather gets softer and can stretch with wear.
Chrome-tanned, denim-lined goat or sheepskin that is washed at high temperatures and subsequently dyed by hand. The result of this time-consuming process is a batik effect with uneven colouring that makes every shoe unique. Unfortunately this high fashion material does not meet the usual Trippen quality standard. The colour can bleed and the leather can stretch unevenly. For us this material is to be understood as a piece of art. Not recommended for people with chrome allergies.
We’ve developed a technique through which we assemble rectangles from our collected chads in strips and level them with a sanding machine. Various sanding effects create a bold yet refined look with all the advantages of vegetable or metalfree - tanned leather.
Vegetable-tanned sheepskin lining, used only in combination with upper leather.
Vegetable tanned, tumbled and washed cowhide. Due to the washing process, the colours fade and the leather’s structure partially becomes more visible. The look and materiality recall a favourite pair of washed-out jeans.
Chrome-tanned calf leather with a covering coat of colour. Tumbled for softness and treated with an additional glossy varnish. The bright colours are resistant to fading. Elegant, rather delicate material of little thickness. Should not be exposed to moisture or heat. Not recommended for people with chrome allergies.
Vegetable-tanned, high-gloss calfskin with a subtle pull-up effect. The glossy finish and brilliant colours ensure that this leather is the epitome of elegance.
Chrome-tanned elk or deer leather. The surface has been “shrunk” in an elaborate process which results in a heavily textured surface and irregular grain structure. Extremely soft and flexible and pleasant to wear. Gets softer with use, may stretch substantially and generally ages faster than other leather. Sensitive to scratches, abrasions and stains. Not recommended for people with chrome allergies.
Chrome-tanned sheepskin. Not recommended for people with chrome allergies.
We found our new vegan, plastic-free material from reclaiming discarded military tent tarps, which are made from
very sturdy cotton.
Chrome-tanned nubuck leather. Tumbled and treated richly with oil; therefore extremely soft in its look and surface feel. Not recommended for people with chrome allergies.
Chrome-tanned sheepskin with various different top coats, in which a metal foil has been incorporated as an inter-layer. Thus the material is pliable on the one hand while remaining dimensionally stable on the other. Thin and delicate. Not recommended for people with chrome allergies.
Vegetable-, in light colours synthetic-tanned, thick calf leather, which has been sanded on the grain side. Can stretch with wear. Colours will get lighter gradually and with exposure to sunlight. The dye can stain your feet.
Vegetable tanned, well-dyed calf leather which can be used either with the grain side or the grained, slightly silvery pigmented flesh side facing outwards. The irregular, argentine pigment coating appears to be peeling off and may wear further away with friction.
In our search for a natural, plastic-free upper, we came across a palette of Belgian linen mailbags from the ‘60s, which we formed into a sturdy canvas for our biodegradable sneaker.
Vegetable-tanned buffalo leather with pull-up effect that has been treated with oil and wax. Scratches and irregularities in this leather are characteristic of the material. The colour will get darker with wear and exposure to sunlight. The dye can stain your feet, especially when used unlined.
Vegetable tanned calf nubuck with distinct pull-up effect that is dyed through, oiled and treated with wax finish. Marks and irregularities in colour are natural characteristics of the leather. The colours will grow darker with wear and exposure to sunlight. The dye can stain your feet. Gets softer with use and may stretch.
Chrome-tanned rabbit skin. Not recommended for people with chrome allergies.
We use rubber for our outsoles.
A thin, vegetable-tanned calf leather with good grip, which will replace the chrome-tanned soft leather previously used. We began the creative process with five bold colours which wind their way through the new collection like neon lettering, forming an attractive contrast to five more elegant and subtle shades.
Chrome-tanned calf leather, which has been tumbled for softness. Colour and texture may therefore vary. Rather delicate due to thin material. Should not be exposed to moisture and heat. The metallic colours are also sensitive to chemicals, abrasions and other damage to the surface, which cannot be repaired. Please note that the metallic effect will decrease with time. Not recommended for people with chrome allergies.
str-seagull
Synthetic material from a Spanish manufacturer who supplies us with yarn
made from 70% recycled PET bottles and 30% ocean plastic - the circular
fabric is knitted in our production in Zehdenick.
Saturnia lux (stx)
A thin, vegetable-tanned leather with good grip that is made on the base of our sat leather and is characterized by its elegant, shiny finish.
Vegetable-tanned goatskin with processed, "shrunken" surface and shiny finish. Sensitive to scratches and other surface damage.
In a new prospect for metal-free tanned leather, we apply dye directly to the surface without washing it out as it is the case for through-dyed leathers. This reduces water consumption by 20% while leaving a white cut edge which creates an interesting contrast.
Soft, vegetable-tanned, aniline-dyed calf leather with suede surface and markings that give the material an antique, “used” look. Gets softer with wear and may stretch substantially.
Tubolare are soft leather pipings, made of the leather types sft, waw or sat. We use them for our models: Lust, Correct, Acrobat, Pivot and Bungee.
The vegan leather is made of synthetic materials and has a velvety surface that is reminiscent to suede. This vegan leather alternative can be used for our Zori and Zig Zag models.
Synthetically pre-tanned and vegetable re-tanned, chromium-free and extremely soft calfskin leather with a natural surface structure, dyed throughout and lightly pigmented. The colour will get darker with wear and exposure to sunlight. Gets softer with use and may stretch substantially. Sensitive to staining, moisture and scratches.
Vegetable-tanned, washed buffalo leather with a distinctive grain pattern. Marks and spots on the leather surface are characteristic of the material. The leather is very thin but nonetheless sturdy. As with all vegetable-tanned leathers, the colours will get darker with wear and exposure to sunlight.
Vegetable-tanned calf leather with pull-up effect. It is dyed through and treated with wax finish. The colour will get darker with wear and exposure to sunlight. The dye can stain your feet. Gets softer with use and may stretch.
wpt - water proof textile
This GRS-certified fabric is made from 100% recycled cotton in Switzerland using a special weaving process, and no chemical additives or finishes are used.
Although it may not be completely waterproof, this fabric is still highly water-repellent.
Vegetable-tanned, aniline-dyed and milled cowhide with a velvety soft surface that was first dyed light overall and then over-dyed in a darker tone, resulting in a different coloured cut edge. The leather may rub off on the inside, becomes softer with wear and may stretch.
100 percent vegetable-tanned calf leather. Uncoloured and tumbled for softness. Dressed as lining and thus relatively thin.
Vegetable-tanned calf leather that is dyed through and treated with wax finish. Light pull-up effect. Tumbled for softness. Colour and texture may vary as a result of the tumbling process. The bi-leather colours have been dyed twice and thus display a different colour edge. The colour will get darker with wear and exposure to sunlight. The dye can stain your feet. Gets softer with use and may stretch.
Acf is a chrome-free, vegetable tanned calf leather with oiled surface and
pull-up effect. Marks and irregularities in color are natural characteristics of the leather.
The colors will grow darker with wear and exposure to sunlight. It gets softer
with use and may stretch.
The new Albino Leather comes from New Zealand farmed deer and is tanned metalfree in a tannery in the Toscana. We have managed to avoid chrome tanning and still achieve the softness of our former elk leather. We have designed a small collection of simple „seamless“ models for this leather. Albino can be also used for all other elk models.
Vegetable tanned calf leather, tumbled for softness. Comes in one dark brown-greyish colour shade and two versions: plain and with a textured reptile structure. Gets softer with wear and may stretch substantially.
Chrome-tanned calf leather with oiled surface and pull-up effect. Marks and scratches are natural characteristics of the leather. Colours will not get darker gradually or with exposure to sunlight. Gets softer with use and may stretch. Because of the chrome-tanning it is softer and more resilient than other leathers, but not recommended for people with chrome allergies.
Half vegetable, half synthetic tanned calf leather. To make this thick leather soft it undergoes a tumbling process, which may lead to an irregular colouring and surface texture. The colour will darken gradually and with exposure to sunlight. The leather gets softer with wear and may stretch. The vibrant colours are especially sensitive to staining, moisture and scratches.
Vegetable-tanned calf leather with a covering coat of colour. It undergoes a tumbling process, which may lead to an irregular colouring and surface texture. Rather delicate due to the material’s lack of density. Should not be exposed to moisture or heat.
For certain models of our t-project recycled-series, which are designed to use very small pieces, we work with the remains of our bag leather: bgl leftovers.
Chrome-tanned calf leather with a covering coat of colour. Colours will not get darker gradually and with exposure to sunlight. Softer and more resistant to changes in colour, water stains and general signs of wear and tear than other leather. Not recommended for people with chrome allergies.
Chrome-tanned calf leather with a covering coat of colour. Especially for the wooden shoes of higher thickness than regular »box« leather and only available in »black«. Softer and more resistant to changes in colour, water stains and general signs of wear and tear than other leather. Not recommended for people with chrome allergies.
Vegetable-tanned buffalo leather with an oiled surface and irregular texture. The colour will darken gradually and with exposure to sunlight. The leather gets softer with wear and may stretch. Sturdier than other leathers as a result of the material’s relative thickness.
Long-haired Tibetan goatskin. Chrome-tanned and thus not recommended for people with chrome allergies.
Cavallin is an Italian cow leather with natural cow hair structure on the surface. The hair is also dyed in the dyeing process.
This soft, summerly cotton fabric is hand dyed which leaves each piece with unique batik patterns and color gradients. The fabric’s raw edges underline the casual grunge look.
Vegetable-tanned, tumbled cowhide with a strictly linear pattern embossed in the leather. Also attractive when combined with other leather types.
Synthetically tanned calf leather. A uniform shade of grey forms the basis. The irregular nuances, sprayed on by hand, are unique to each shoe. Gets softer with use and may stretch.
Chrome-tanned sheepskin distinguished by its long rows of crescent-shaped incisions. Rather delicate due to the incisions and the material’s lack of density, and not tear-proof. Due to the tanning not recommended for people with chrome allergies.
A vegetable-tanned deerskin which rivals our elk leather for softness, and whose surface is even slightly more robust thanks to the tanning process.
Vegetable-tanned cow hide, tumbled for softness. The surface is coated with a thin layer of silvery, gleaming wax. The colours underneath remain clearly visible. The wax finish is relatively resilient, but may wear away with intense friction.
Vegetable-tanned calf leather that has been dyed twice and thus features a different coloured edge. The colour will darken gradually and with exposure to sunlight. The dye can stain your feet. The leather gets softer with wear and may stretch.
Vegetable-tanned, aniline-dyed calf leather which has been tumbled for softness and dyed twice and thus features a different coloured edge. Colours and surface texture may vary. The colour will darken gradually and with exposure to sunlight. Gets softer with use and may stretch substantially.
Chrome- or synthetically-tanned elk or deer leather with a covering coat of colour. Extremely soft, flexible and pleasant to wear. Elk has a highly textured, irregular surface, which is sensitive to scratches, abrasions and stains. The dye can stain your feet. Gets softer with use, may stretch substantially and generally ages faster than other leather. Not recommended for people with chrome allergies.
Following the principles of “upcycling” made from used bicycle tires and vegetable-tanned lining.
Vegetable-tanned, tumbled and washed cowhide with a flower pattern embossed in the leather. The rich variety of the floral ornamentation recalls a wallpaper pattern from the Arts and Craft movement.
Vegetable-tanned, thin buffalo leather with pull-up effect and extremely shiny surface that is coloured by hand. The manual colouring gives the material a very vivid look, however, the colour may leave marks on the inside. The leather will darken gradually and with exposure to sunlight. The leather gets softer and can stretch with wear. The vibrant colours are especially sensitive to staining, moisture and scratches.
Soft, vegetable-tanned leather with white wax glazing that does, however, easily wear away with use. The colour will darken gradually and with exposure to sunlight. The leather gets softer with wear and may stretch.
As a new color for our t-project styles „Aware“ and „Beware“ we have chosen post-consumer jeans. The material can be very different in the shade of
blue, brightness and strength. For the selection of the jeans we focus on pure cotton quality and source them from sorted out clothing donations in Berlin.
Kenya leather is vegetable-tanned calf leather with a covering coat of colour, an additional glossy varnish and a light pull-up effect.
Vegetable-tanned calf leather laminated with coloured foil. Like all leathers with shiny surfaces, it is sensitive to scratches and other surface damage. The leather gets softer and can stretch with wear.
Chrome-tanned, denim-lined goat or sheepskin that is washed at high temperatures and subsequently dyed by hand. The result of this time-consuming process is a batik effect with uneven colouring that makes every shoe unique. Unfortunately this high fashion material does not meet the usual Trippen quality standard. The colour can bleed and the leather can stretch unevenly. For us this material is to be understood as a piece of art. Not recommended for people with chrome allergies.
We’ve developed a technique through which we assemble rectangles from our collected chads in strips and level them with a sanding machine. Various sanding effects create a bold yet refined look with all the advantages of vegetable or metalfree - tanned leather.
Vegetable-tanned sheepskin lining, used only in combination with upper leather.
Vegetable tanned, tumbled and washed cowhide. Due to the washing process, the colours fade and the leather’s structure partially becomes more visible. The look and materiality recall a favourite pair of washed-out jeans.
Chrome-tanned calf leather with a covering coat of colour. Tumbled for softness and treated with an additional glossy varnish. The bright colours are resistant to fading. Elegant, rather delicate material of little thickness. Should not be exposed to moisture or heat. Not recommended for people with chrome allergies.
Vegetable-tanned, high-gloss calfskin with a subtle pull-up effect. The glossy finish and brilliant colours ensure that this leather is the epitome of elegance.
Chrome-tanned elk or deer leather. The surface has been “shrunk” in an elaborate process which results in a heavily textured surface and irregular grain structure. Extremely soft and flexible and pleasant to wear. Gets softer with use, may stretch substantially and generally ages faster than other leather. Sensitive to scratches, abrasions and stains. Not recommended for people with chrome allergies.
Chrome-tanned sheepskin. Not recommended for people with chrome allergies.
We found our new vegan, plastic-free material from reclaiming discarded military tent tarps, which are made from
very sturdy cotton.
Chrome-tanned nubuck leather. Tumbled and treated richly with oil; therefore extremely soft in its look and surface feel. Not recommended for people with chrome allergies.
Chrome-tanned sheepskin with various different top coats, in which a metal foil has been incorporated as an inter-layer. Thus the material is pliable on the one hand while remaining dimensionally stable on the other. Thin and delicate. Not recommended for people with chrome allergies.
Vegetable-, in light colours synthetic-tanned, thick calf leather, which has been sanded on the grain side. Can stretch with wear. Colours will get lighter gradually and with exposure to sunlight. The dye can stain your feet.
Vegetable tanned, well-dyed calf leather which can be used either with the grain side or the grained, slightly silvery pigmented flesh side facing outwards. The irregular, argentine pigment coating appears to be peeling off and may wear further away with friction.
In our search for a natural, plastic-free upper, we came across a palette of Belgian linen mailbags from the ‘60s, which we formed into a sturdy canvas for our biodegradable sneaker.
Vegetable-tanned buffalo leather with pull-up effect that has been treated with oil and wax. Scratches and irregularities in this leather are characteristic of the material. The colour will get darker with wear and exposure to sunlight. The dye can stain your feet, especially when used unlined.
Vegetable tanned calf nubuck with distinct pull-up effect that is dyed through, oiled and treated with wax finish. Marks and irregularities in colour are natural characteristics of the leather. The colours will grow darker with wear and exposure to sunlight. The dye can stain your feet. Gets softer with use and may stretch.
Chrome-tanned rabbit skin. Not recommended for people with chrome allergies.
We use rubber for our outsoles.
A thin, vegetable-tanned calf leather with good grip, which will replace the chrome-tanned soft leather previously used. We began the creative process with five bold colours which wind their way through the new collection like neon lettering, forming an attractive contrast to five more elegant and subtle shades.
Chrome-tanned calf leather, which has been tumbled for softness. Colour and texture may therefore vary. Rather delicate due to thin material. Should not be exposed to moisture and heat. The metallic colours are also sensitive to chemicals, abrasions and other damage to the surface, which cannot be repaired. Please note that the metallic effect will decrease with time. Not recommended for people with chrome allergies.
str-seagull
Synthetic material from a Spanish manufacturer who supplies us with yarn
made from 70% recycled PET bottles and 30% ocean plastic - the circular
fabric is knitted in our production in Zehdenick.
Saturnia lux (stx)
A thin, vegetable-tanned leather with good grip that is made on the base of our sat leather and is characterized by its elegant, shiny finish.
Vegetable-tanned goatskin with processed, "shrunken" surface and shiny finish. Sensitive to scratches and other surface damage.
In a new prospect for metal-free tanned leather, we apply dye directly to the surface without washing it out as it is the case for through-dyed leathers. This reduces water consumption by 20% while leaving a white cut edge which creates an interesting contrast.
Soft, vegetable-tanned, aniline-dyed calf leather with suede surface and markings that give the material an antique, “used” look. Gets softer with wear and may stretch substantially.
Tubolare are soft leather pipings, made of the leather types sft, waw or sat. We use them for our models: Lust, Correct, Acrobat, Pivot and Bungee.
The vegan leather is made of synthetic materials and has a velvety surface that is reminiscent to suede. This vegan leather alternative can be used for our Zori and Zig Zag models.
Synthetically pre-tanned and vegetable re-tanned, chromium-free and extremely soft calfskin leather with a natural surface structure, dyed throughout and lightly pigmented. The colour will get darker with wear and exposure to sunlight. Gets softer with use and may stretch substantially. Sensitive to staining, moisture and scratches.
Vegetable-tanned, washed buffalo leather with a distinctive grain pattern. Marks and spots on the leather surface are characteristic of the material. The leather is very thin but nonetheless sturdy. As with all vegetable-tanned leathers, the colours will get darker with wear and exposure to sunlight.
Vegetable-tanned calf leather with pull-up effect. It is dyed through and treated with wax finish. The colour will get darker with wear and exposure to sunlight. The dye can stain your feet. Gets softer with use and may stretch.
wpt - water proof textile
This GRS-certified fabric is made from 100% recycled cotton in Switzerland using a special weaving process, and no chemical additives or finishes are used.
Although it may not be completely waterproof, this fabric is still highly water-repellent.
Vegetable-tanned, aniline-dyed and milled cowhide with a velvety soft surface that was first dyed light overall and then over-dyed in a darker tone, resulting in a different coloured cut edge. The leather may rub off on the inside, becomes softer with wear and may stretch.
100 percent vegetable-tanned calf leather. Uncoloured and tumbled for softness. Dressed as lining and thus relatively thin.
