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Ecological Materials

FRENN ecological materials

Our designer Antti Laitinen chooses the right fabric for each product, so that comfort is guaranteed and the product is easy to maintain. All our pants are machine washable at home.


The high-quality material can withstand use and washing for a long time. In this way, the product maintains its shape and is presentable also during the working day. Fabrics and knitwear woven from long fiber yarn do not wrinkle, and the surface does get pilling. It has been tested.

FRENN ecological materials

The longer you can wear the garment, the more responsible choice it is. For example, if you wear your t-shirt 50 times instead of four, its carbon footprint is reduced by 85% (Carbon Trust, International Carbon Flows: Clothing 2011).

Long-term cooperation

We source all fabrics, knitting yarns and accessories directly from our long-term European partners in low-risk countries Finland, Italy, Germany, Portugal and Lithuania (Maplecroft 2018, BSCI Amfori 2022). During the last year, 68% of the materials, calculated by product volume, were purchased from partners with whom the cooperation has lasted for more than five years.

75% of our partners operate according to vertical production, i.e. they spin yarns and weave fabrics in their own factory without unnecessary intermediaries. This guarantees the creators as good a living as possible. Our goal is to know the origin of the material as far back as possible. We work for this every day.

Here you can find detailed information about our partners

FRENN ecological materials

Environmental and user friendliness

All our fabrics have an international eco-certificate, so we can be sure that they are produced as ecologically and ethically as possible. The certificates also guarantee that the fabric does not contain harmful chemicals and is safe against the user's skin.

More important than certificates, however, is that the material withstands use and washing. Old-time honest quality is the best responsibility and the right use of natural resources. In this case, the manufactured product is used for as long as possible.

Future goals

Our goal is that all the cotton we use is organic cotton and that at least 30% of the fabrics in the collection are woven from recycled fibers by the end of 2023.

Organic cotton
95% of the cotton we use is ecologically and ethically grown GOTS and Ökö Tex 100 certified organic cotton in Turkey and the USA. Fabrics and jersey knits are produced in Finland, Germany and Portugal. All the materials of the t-shirt are knitted in Finland at Orivesi. The clothes are sewn locally in Latvia and Poland.

The benefits of certified organic cotton

  • The plants are GM-free
  • No chemical fertilizers are used in the cultivation of organic cotton
  • Organic cotton does not contain harmful chemicals
  • Less water is used in cultivation
  • No harmful chemicals are used for coloring
  • The material is safe against the skin and does not cause allergies
  • Reduces emissions due to lower energy demand
  • Ecological and ethical production chain from beginning to end
  • Better working conditions and a ban on child labor
  • A better livelihood for the cotton farmer

Recycled wool
All the wool fabrics used in the outer jackets are GRS certified and woven from 100% recycled wool fibers in Italy.

Recycled synthetic fibers
All outer and lining fabrics used in outer jackets are GRS certified and woven from 100% recycled polyester or polyamide fibers in Italy.

Merino wool
All our knits are knitted from the same RWS and Ökö-Tex 100 certified 100% extra fine merino wool. The wool comes from Australia and New Zealand, where you can find merino wool sheep that grow the best merino wool in the world.

Based on knitting factory Savitas Stilius and our own experiences, the Italian Miroglio 2/28 Class yarn is the best merino wool quality on the market. The knitwear keeps its shape, and the surface does not get pilling even with heavy use. It has been tested.

Wool fabric
The woolen fabric woven in Italy is of very high quality and does not wrinkle even with heavy use. The fabric is 98% wool and 2% elastane. The fabric's twill binding and elastane make the fabric comfortably flexible. In this way, the pants also return to their original size after use and keep their shape better for longer. The wool used in the fabric can be traced back to a sheep farm in Australia and New Zealand.

The linen fiber in our collection is grown in the EU, northern France and the Baltic countries. The fabrics are woven in Lithuania and the clothes are sewn in Latvia and Poland. Our fabric weavers Klassine Tekstile and Siulas are member companies of the Master of Linen organization Europeanflax. All the linen fabrics we use are Ökö-Tex 100 certified.

Linen grows in Europe on many soils with natural rainwater without artificial irrigation. In this way, linen saves a large amount of water every year. Linen fields also act as excellent carbon sinks and do their part in the northern hemisphere.