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  • How we work with wool
  • How we work with wool

How we work with wool

We first started producing wool garments in 2011. We wanted a natural product that could fit into our vision of circularity, without losing performance.

We first started producing wool garments in 2011. Then, creating a wool-fabric that lived up to our picky standards was not easy. Foremost, we wanted a natural product that could fit into our vision of circularity, without losing performance.

Being biodegradable, wool is circular by nature. Unfortunately, wonderful properties like these disappears if the wool is blended with synthetic fibers; something that is common both in the outdoor industry and in fast fashion. Synthetics is usually added to enhance durability, elasticity or to reach a lower price point for the consumer. When we set out to create Airborn, our trademark second-skin wool fabric, not blending a wool fabric that fine with synthetics was an anomaly. We instead wanted to use other natural materials to create the same performance. Looking to nature, we found our answer in silk - a fiber that is strong, light and comfortable. After years of field testing we finally got the results we were looking for, and the Airborn-formula has not changed since. Moving forward, we’ve found other natural materials that go particularly well with wool, such as lyocell-based Tencel – made from wood pulp.

Wool garments have natural unique performance properties, it will keep you warm when cold, cool when warm and in the meantime eliminate bad odor. All it takes is a flock of sheep, and some very strict animal welfare codes of conduct of course. There are many different qualities of wool, depending on the origin and how it’s produced. Some thick wool can feel itchy and heavy, for that reason, Houdini only uses mulesing-free merino wool.

Going forward, we are continuously looking into fabric- and garment production to enhance biodegradability even further. In 2016, we launched our first wool products with full traceability, which we are very proud of and will continue to develop so our customers can know exactly where the sheep live that keep you warm and dry throughout your adventures.

Fabric hard-facts

Airborn SilkMerino
Ultralight Airborn SilkMerino – the ultimate combination of cool and warmth, strength and resilience, technology and nature. Airborn SilkMerino is a pure organic, ultra-lightweight yet tough and long lasting blend of silk and merino wool. It provides perfect thermal balance and natural moisture vapor transmission.
With a weight of only 120 grams it is probably the lightest merino layer you can get your hands on. Airborn SilkMerino is organic, renewable and biodegradable.

  • Ultra-lightweight, 120g/sqm, 18,5µm
  • 75% merino wool / 25% silk
  • Silk-reinforced merino wool
  • Excellent warmth-to-weight ratio
  • Naturally thermo regulating
  • Active moisture vapor transmission
  • Naturally odor free and anti-static
  • Comfort seams placed in non-friction areas
  • Merino wool from South Africa, mulesing-free.
  • Fabrics made in the European Union
  • Garment made in the European Union
  • Organic, renewable and biodegradable
  • Recyclable


Activist TreeMerino
The ultimate combination of cool and warmth, strength and resilience, technology and nature. Activist TreeMerino is a pure organic, tough and long lasting blend of Tencel and merino wool. It provides perfect thermal balance, moisture wicking and natural moisture vapor transmission.
We are happy and proud of the fact that this fantastic quality is produced locally in Sweden. Activist TreeMerino is organic, renewable and biodegradable.

  • Optimal organic solution for the future. Softer than plain merino and with effective moisture management.
  • Origin: Sweden
  • 60% merino wool 20µ, 40% lyocell Tencel®
  • Weight: 170 g/sqm
  • Mulesing free merino wool from Australia and South Africa, lyocell Tencel® from Lenzing in Austria (with EU Ecolabel)
  • Wool and cellulosic based renewable fibers
  • Softer than plain merino
  • Vapor and moisture
  • Next-to-skin comfort
  • Light and soft material
  • Naturally odor free
  • Made from renewable and biodegradable fibers
  • Recycable


Terry TreeMerino™
The ultimate combination of cool and warmth, strength and resilience, technology and nature. Terry TreeMerino™ is a pure organic, tough and long lasting blend of Tencel and merino wool. It provides perfect thermal balance, moisture wicking and natural moisture vapor transmission.
Use it as an everyday favourite in town or as a thermal layer in the mountains. Terry TreeMerino™ is organic, renewable and biodegradable.

  • Terry TreeMerino™
  • Merino wool terry against the skin for all the good properties of wool with a soft face in Tencel®.
  • Origin: Italy
  • 65% lyocell Tencel®, 35% merino wool
  • Mulesing free merino wool from Australia, lyocell Tencel® from Lenzing in Austria
  • Wool and cellulosic based renewable fibers
  • Weight: 260 g/sqm
  • Softer than plain merino
  • Vapor and moisture management
  • Next-to-skin comfort
  • Mechanical stretch
  • Naturally odor free
  • Lyocell Tencel® face
  • Warming merino wool terry inside
  • Made from renewable and biodegradable fibers
  • Recycable

Wool milestones

2007
R & D start up for sourcing and development of our new wool range. We spent almost four years in our quest to deliver the most technical, sustainable and comfortable wool garments on the market.

2011
Launch of Airborn SilkMerino, a range of thin and technical underwear and base layer in a mix of Merino wool and silk. Fully biodegradable.

2014
Launch of Altitude, a range of technical thin midlayers in a mix of Merino wool and silk. Fully biodegradable.

2015
Launch of Activist, a range of technical midweight baselayers in a mix of Merino wool and tencel. Fully biodegradable.

2016
Launch of Wooler, technical midlayer in 100% merino wool. Fully traceable wool and fully biodegradable.
Launch of Terry TreeMerino in a mix of Merino wool and tencel. A range of versatile and technical jersey garments. Midlayers you can use in the mountains as well as at the office. Fully biodegradable.

2017
Launch of Cham TreeMerino in a mix of Merino wool and tencel. A range of woven versatile and technical garments. Second layers you can use in the mountains as well as at the office. Fully biodegradable.


Wooler GridMerino™
Wooler – state-of-the-art. Organic, renewable and biodegradable thermal layer at the essence of minimalism. Perfect fit, smart performance detailing and an outstanding fabric technology. The soft merino wool provides effective vapor transmission and moisture management. It insulates effectively and provides full freedom of movement. Wooler is designed to fit perfectly underneath your shell but works just as well as an outerwear piece. State-of-the-art sustainable technology and 21st century ethical standards enable a ZQ approved, resource efficient, low-impact production process and a circular lifecycle where nothing goes to waste. A new dimension of wool fabric combining super soft merino wool with a technical grid construction.

  • Origin: Italy
  • 100% merino wool 17,50µm
  • Weight: 260 g/sqm
  • Mulesing free merino wool from New Zeeland
  • ZQ traceable wool program
  • Certified by EMAS (EU Eco-Management and Audit Scheme)
  • Vapor and moisture management
  • Next-to-skin comfort
  • Mechanical stretch
  • Naturally odor free
  • Technical grid construction
  • Warming fleece inside
  • Made from renewable and biodegradable fibers
  • Recycable


Cham TreeMerino
The ultimate combination of cool and warmth, strength and resilience, technology and nature. Cham TreeMerino is a pure organic, tough and long lasting blend of Tencel and merino wool. It provides perfect thermal balance, moisture wicking and natural moisture vapor transmission. All in all, a high-performance version of a classic chambray. Cham TreeMerino is organic, renewable and biodegradable.

  • Lightweight, 188g/sqm, 18,9µm
  • Origin: Taiwan
  • 51% lyocell Tencel® 49% merino wool 18.9µm
  • Weight: 188 g/sqm
  • Mulesing free merino wool from Australia, lyocell Tencel® from Lenzing in Austria (with EU Ecolabel)
  • Natural vapor and moisture management
  • Softer than plain merino
  • Next-to-skin comfort
  • Light and soft material
  • Naturally odor free
  • Made from renewable and biodegradable fibers
  • Recycable