Why choose merino wool for hiking, summer and winter alike
Merino wool is increasingly used in hiking. Its technical properties and the advantages of merino wool garments are numerous. Discover why choosing merino wool clothing is a smart move for hiking in any season.

Impressive technical properties

Merino wool is a natural fibre sourced from merino sheep, hence the name. Hardy and able to withstand changing temperatures, these animals originate from Australia, Tasmania, New Zealand, and Spain. In France, herds are rarer, though some do exist — notably along the GR69 La Routo.
Similar to standard wool, merino doesn't itch — which is why the textile industry is increasingly turning to it. It is an excellent insulating material, protecting against both warm and cold conditions. For skiing, it is frequently found in thermal base layers. This fibre is ultra-breathable, and stretches and compresses with ease.
What's more, merino fibres have additional properties beyond those of standard wool. Merino wool has the particular quality of being finer and therefore lighter. And it has other characteristics that make it the ideal ally for hikers. Let's explore these benefits.

The benefits of merino wool in the mountains
The main benefits of merino wool for hiking are:
- breathability and insulation
- odour resistance and quick-drying
This is why merino wool garments are used for hiking, whether in winter or for a summer mountain hiking outfit.
Merino fibre boasts incredible breathability that keeps you dry during exertion. It is also insulating, keeping you warm in winter and cool in summer. It's this balance between optimal insulation and moisture management that delivers comfort and hygiene for hikers. Technical mountain kit in merino wool becomes the ultimate companion for summer outings (hiking, trekking) or winter pursuits (ski touring, nordic walking).
Finally, it offers excellent quick-drying capability — a real advantage on trips, treks, and other outdoor activities. Thermal regulation is optimal, which also helps prevent unpleasant odours. This impressive odour resistance of merino fibre garments means travellers can wear them for several days in a row without worry. Whether trekking or travelling, there's no need to weigh down your backpack with a pile of spare T-shirts.
Good for the planet
Merino wool is also a benefit for the planet. It is natural in origin, durable, easy to care for, and easily recycled. Natural fibres are biodegradable.
What's more, producing merino wool garments requires less energy and less water. For example, producing 100 wool jumpers requires 70% less water than cotton.
Finally, most sheep farmers take the welfare of their animals and their broader environment seriously. Australian producers, for example, are working to optimise soil health and increase biodiversity.
Outdoor manufacturers are looking for more affordable alternatives, notably by offering garments made from merino wool blended with synthetic fibres — such as the French brand Cimalp®. Their breathable merino wool T-shirts for hiking are made from CimaWool®, a fabric comprising 47% merino wool and 53% polyester, exclusively developed by the Drôme-based SME. The dye is organic and eco-friendly, and the fabric carries the Bluesign® certification, guaranteeing the preservation of natural resources and a reduced environmental impact.
