Did you know you can make activewear from wood? In fact, you can make clothing fabric from lots of different raw materials, some of the most common ones being crude oil for synthetics or cotton.

At Tripulse, we are passionate about finding unique raw materials that are as eco- and health-friendly as possible, while being extremely functional and perfect for physical activity.

That’s why we chose Lenzing’s TENCEL™ Lyocell fibers for our very first activewear collection. Not only do they have great performance, durability, and amazing softness, but they’re free from harmful chemicals and plastics. Our supply chain, from sourcing raw materials to delivery, is Climate Neutral Certified and environmentally safe. This is thanks to using wood from sustainable sources, a clean production process, no harmful microplastics and toxins and investing into projects that support our planet and natural habitats.

But what are TENCEL™ Lyocell fibers, and what makes them so revolutionary for the textile industry? In this post we’ll share with you the specific benefits these fibers offer, along with the environmentally safe materials it’s made of.

Lenzing's production method of tencel lyocell


More and more people are asking for environmentally-friendly clothing, and it’s exciting to meet the demand with ordinary raw materials undergoing innovative production processes. Wood has been the source of many human inventions because of its botanical origin, strength and versatility. It’s only time we start to manufacture it into our textiles on a larger scale.

The process of turning wood into durable, high-performance activewear starts in the forest. The wood pulp comes from sustainably managed forests, including eucalyptus, pine, spruce and birch trees. The wood is certified according to recognized sustainability criteria, such as the FSC® and PEFC™ standards. (1)

After the wood is sourced, it undergoes a transformation process into cellulosic fibers. Natural materials have been turned into fabric in the textile industry throughout history, such as viscose, a fabric created from wood pulp. The problem today with turning these cellulose fibers into fabric is that they’ve used a linear open production process using harmful chemicals (2), e.g. carbon disulfide, which is a neurotoxin, used to produce viscose (3). The majority of viscose is produced in just 3 countries, China, India and Indonesia, where untreated wastewater from its production contaminates the local environment. This also poses health risks for thousands in the local communities. (4)

TENCEL™ Lyocell fibers on the other hand use a closed loop production process and an organic solvent called N-methylmorphine-N-oxide, which is nontoxic and biodegradable. (5) This process saves 99% of the solvent used during the spinning process and recycles the water used as well, making it a very circular and almost zero-waste production process. (6) This makes the production process of TENCEL™ Lyocell fibers much better for our environment and helps protect it.


Outdoor gym in activewear leggings


Not only is the yarn created in a sustainable production process, the final fabric it’s created into has many performance benefits for activewear. Here are our top reasons for using TENCEL™ Lyocell fibers in the Tripulse activewear collection:

  • Strength
Compared to other cellulose fibers, they have great durability and quality. It’s the only regenerated cellulose fiber that is stronger than cotton when wet. (7)
  • Breathability
The fibers have a great ability to transport moisture because of their microscopic fibrils - more than cotton. This helps regulate body temperature from it’s active absorption and release of moisture. (8) Rest assured your skin will feel cooler or warmer and dry depending on your physical activity.

  • Smoothness & skin-friendliness
Put the fabric under an electron microscope and the fibers will show a smooth surface. The smoothness enables it to glide lightly over your skin and avoid irritation for sensitive skin. (9) And that’s especially important when moving a lot.

  • Unfavorable for bacteria growth
Bacteria tends to grow on surfaces with more moisture. Synthetic fabrics like polyester absorb moisture less efficiently than Lyocell fabric (10), and that’s why we often smell a stringent smell when working out in a polyester shirt. On TENCEL™ Lyocell fibers, instead, bacteria can’t grow easily - less moisture and odour on the surface allows for less washing and an overall more pleasant experience throughout daily usage.

  • Color retention and sheen
The fibers’ ability to absorb dye more effectively in their structure means a more brilliant color and soft luster on the surface. More color vibrancy is retained in comparison to fabrics made from cotton, even after many washes. (11)

  • Certified safe
Cellulose fibers, while being organic, can often be produced with harmful chemicals. The confirmation of a STANDARD 100 by OEKO-TEX® certification assures that every aspect of the fabric is harmless to human health. (12) (13)

  • Biodegradable
A final farewell to our activewear doesn’t mean polluting our natural ecosystems with microplastics and toxins. The fabric can revert back to nature through certain conditions, e.g. industrial or natural, thanks to its botanical origin from wood pulp and a sustainable production process (14).

The textile industry is full of fantastic innovation. Wood is a multi-talented raw material with endless possibilities for better clothes. Designing long-lasting activewear should take into consideration human and environmental health. Our goal is to make activewear that has great quality, strength and functionality, while not compromising our natural world.



October 15, 2021 — Christine Zanon

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