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Preferred Materials

Research has shown that the materials we use are responsible for up to 80% of our environmental footprint. This makes preferred materials our priority.


100%rPES and 100%rPA

Polyester is the material we use more than any other. To reduce the environmental footprint associated with our use of this performance fabric, we are working to phase out virgin polyester and polyamide and use only 100% recycled Polyester (rPES) and 100% recycled Polyamide (rPA). Using recycled polyester and polyamide reduces both CO2 emissions as well as water usage compared with virgin polyester and polyamide. By how much depends on the kind of recycling used as well as how you measure the impact. Using recycled polyester has several other benefits too. It means we’re giving new life to material that would likely have been incinerated or ended up in landfill. At the same time, it also reduces plastic waste and crude oil consumption. 



Bio-based Polyester

Bio-based polyester is an alternative to the more common petrol-based variety. However, this doesn’t actually make it sustainable or preferred by definition. That’s why we’re only using this material very selectively on a small scale for now.



Man-made Cellulosics 

At the moment we’re focusing on recycled materials, but we believe the future is for sure not petrol-based. That’s why we’re researching and testing alternative materials like man-made Cellulosics (MMCs). These are materials from cellulosic sources like tree bark that are chopped up and processed into pulp before being turned into fibers. We are already using Tencel™  in parts of our products and we are looking into increasing our use of this technical material as we expand our collection. What also makes bio-based materials like this very interesting is that they come from renewable sources.


Other sources include castor oil and sugar cane. We work with the HIGG index and Life-cycle assessments (LCAs) to make sure we’re choosing the best possible options. 



Vegan Leather

Leather production is unfortunately a dirty business. It causes chemical and wastewater pollution and also animal cruelty. It’s not something we want to be part of, so we took the call to only work with vegan leather. As a result, we’re constantly looking to find leather alternatives that can live up to our performance expectations. It’s a big ask: We want our leather alternatives to be breathable, soft and durable while meeting our quality and sustainability expectations. Not easy, but totally worth it.    



100% Organic Certified Cotton

Cotton is an incredibly versatile material but it also requires a very thirsty production process. We limit the use of cotton to around 10% of our overall material and we are currently working towards using only 100% organic and GOTS certified cotton.



Mulesing-free Wool

Only about 10% of our material is made of wool and, like all fabrics we use, it has to meet our high quality standards. With a material that comes from animals, this of course includes making sure that those animals are treated humanely. We are currently working on ensuring that all our wool is 100% certified as mulesing-free and complies with the Responsible Wool Standard (RWS). Our Merino Beanie is made with 100% mulesing-free wool, produced in Europe. 




Per- and polyfluorinated chemicals are a family of man-made, fluorine-containing chemicals. They have unique properties that make materials stain resistant and water repellent. Unfortunately these chemicals can also harm the environment. They bioaccumulate, which means that they can become concentrated inside plants and animals and cause harm. We are working with our suppliers to steadily reduce the use of PFCs in our products. A number of our weatherproof items, such as the Waterproof Anorak, the Insulator Jacket and the Weather Jacket are already PFC-free. 



Materials We Don’t Use.

You’ll never find acrylic fabrics in On products. The production process for acrylic is energy intensive and requires chemicals that can impact the health for those involved in its production, so we’d rather stay clear of it. We also never use real leather because of its large and environmental footprint and the animal cruelty that is connected to the leather industry. 



Reducing Our Material Processing Footprint

At the same time as working with preferred materials, we’re also working to improve the ways we process our materials. In particular, we’re striving to improve the dyeing process, which accounts for around 36% of the environmental footprint during production.    




Once an On product is finished, it’s shipped by sea to our global warehouses. This voyage takes several weeks and isn’t always a smooth ride. During their journey the products are stored a dusty and humid environment. Our packaging needs to protect the product from damage during this time. 


For our shoes, we’re on our own journey to using packaging that’s made from 100% recycled cardboard, with a design that minimizes the environmental footprint while guaranteeing the product is protected. 


For our Performance Apparel products, we’re taking a detailed look at where these items are being stored, for how long, where they are then sold and what all this means for the packaging. Once we have all this information we can find a packaging material that will limit the associated environmental footprint while protecting the product. For example, not all packaging options can handle a humid environment. There are some interesting options on the table so check back here soon for an update. 



Microfibers – What You Can Do

The release of small microfibers into the environment is a big issue in the textile industry. We’re looking into various ways to limit this, but issue there are also things you can do at home. For example, every time you wash your clothes in the washing machine, they release these ultra-fine fabric strands. Are there items you could wash less regularly? Can you wear that top for one more run before you wash it? has some helpful guidance on how you can change your laundry habits to reduce the use of water and energy as well as limiting the release of microfibers. You can also use special washing bags to help prevent microfibers getting released into the water cycle.