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Thermal Base Layers

Thermal Base Layers

Cimalp has designed a complete range of versatile thermal base layers for men and women. They will keep you warm in all conditions.

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Featured
Most relevant
Best selling
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Alphabetically, Z to A
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Date, newest to oldest
Thermal Base Layers Men WOOL TOP 200 H
  • Thermal Base Layers Men WOOL TOP 200 H
  • Thermal Base Layers Men WOOL TOP 200 H
  • Thermal Base Layers Men WOOL TOP 200 H
  • Thermal Base Layers Men WOOL TOP 200 H
  • Thermal Base Layers Men WOOL TOP 200 H
  • Thermal Base Layers Men WOOL TOP 200 H
  • Thermal Base Layers Men WOOL TOP 200 H
  • Thermal Base Layers Men WOOL TOP 200 H
  • Thermal Base Layers Men WOOL TOP 200 H
  • Thermal Base Layers Men WOOL TOP 200 H
Thermal Base Layers Women WOOL TOP 200 F
  • Thermal Base Layers Women WOOL TOP 200 F
  • Thermal Base Layers Women WOOL TOP 200 F
  • Thermal Base Layers Women WOOL TOP 200 F
  • Thermal Base Layers Women WOOL TOP 200 F
  • Thermal Base Layers Women WOOL TOP 200 F
  • Thermal Base Layers Women WOOL TOP 200 F
  • Thermal Base Layers Women WOOL TOP 200 F
  • Thermal Base Layers Women WOOL TOP 200 F
Thermal Base Layers Men WOOL TOP 240 H
  • Thermal Base Layers Men WOOL TOP 240 H
  • Thermal Base Layers Men WOOL TOP 240 H
  • Thermal Base Layers Men WOOL TOP 240 H
  • Thermal Base Layers Men WOOL TOP 240 H
  • Thermal Base Layers Men WOOL TOP 240 H
  • Thermal Base Layers Men WOOL TOP 240 H
  • Thermal Base Layers Men WOOL TOP 240 H
  • Thermal Base Layers Men WOOL TOP 240 H
  • Thermal Base Layers Men WOOL TOP 240 H
  • Thermal Base Layers Men WOOL TOP 240 H
Thermal Base Layers Men WOOL ZIP 200 H
  • Thermal Base Layers Men WOOL ZIP 200 H
  • Thermal Base Layers Men WOOL ZIP 200 H
  • Thermal Base Layers Men WOOL ZIP 200 H
  • Thermal Base Layers Men WOOL ZIP 200 H
  • Thermal Base Layers Men WOOL ZIP 200 H
  • Thermal Base Layers Men WOOL ZIP 200 H
  • Thermal Base Layers Men WOOL ZIP 200 H
  • Thermal Base Layers Men WOOL ZIP 200 H
  • Thermal Base Layers Men WOOL ZIP 200 H
  • Thermal Base Layers Men WOOL ZIP 200 H

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Thermal Base Layers Men WOOL PANT 200 H
  • Thermal Base Layers Men WOOL PANT 200 H
  • Thermal Base Layers Men WOOL PANT 200 H
  • Thermal Base Layers Men WOOL PANT 200 H
  • Thermal Base Layers Men WOOL PANT 200 H
  • Thermal Base Layers Men WOOL PANT 200 H
  • Thermal Base Layers Men WOOL PANT 200 H
  • Thermal Base Layers Men WOOL PANT 200 H
  • Thermal Base Layers Men WOOL PANT 200 H
Thermal Base Layers Women WOOL PANT 200 F
  • Thermal Base Layers Women WOOL PANT 200 F
  • Thermal Base Layers Women WOOL PANT 200 F
  • Thermal Base Layers Women WOOL PANT 200 F
  • Thermal Base Layers Women WOOL PANT 200 F
  • Thermal Base Layers Women WOOL PANT 200 F
  • Thermal Base Layers Women WOOL PANT 200 F
  • Thermal Base Layers Women WOOL PANT 200 F
  • Thermal Base Layers Women WOOL PANT 200 F
Thermal Base Layers Women WOOL TOP 240 F
  • Thermal Base Layers Women WOOL TOP 240 F
  • Thermal Base Layers Women WOOL TOP 240 F
  • Thermal Base Layers Women WOOL TOP 240 F
  • Thermal Base Layers Women WOOL TOP 240 F
  • Thermal Base Layers Women WOOL TOP 240 F
  • Thermal Base Layers Women WOOL TOP 240 F
  • Thermal Base Layers Women WOOL TOP 240 F
  • Thermal Base Layers Women WOOL TOP 240 F
Thermal Base Layers Men WARM TOP 5 H
  • Thermal Base Layers Men WARM TOP 5 H
  • Thermal Base Layers Men WARM TOP 5 H
  • Thermal Base Layers Men WARM TOP 5 H
  • Thermal Base Layers Men WARM TOP 5 H
  • Thermal Base Layers Men WARM TOP 5 H
  • Thermal Base Layers Men WARM TOP 5 H
  • Thermal Base Layers Men WARM TOP 5 H
  • Thermal Base Layers Men WARM TOP 5 H
Thermal Base Layers Men WOOL PANT 240 H
  • Thermal Base Layers Men WOOL PANT 240 H
  • Thermal Base Layers Men WOOL PANT 240 H
  • Thermal Base Layers Men WOOL PANT 240 H
  • Thermal Base Layers Men WOOL PANT 240 H
  • Thermal Base Layers Men WOOL PANT 240 H
  • Thermal Base Layers Men WOOL PANT 240 H
  • Thermal Base Layers Men WOOL PANT 240 H
  • Thermal Base Layers Men WOOL PANT 240 H
Thermal Base Layers Women WARM TOP 5 F
  • Thermal Base Layers Women WARM TOP 5 F
  • Thermal Base Layers Women WARM TOP 5 F
  • Thermal Base Layers Women WARM TOP 5 F
  • Thermal Base Layers Women WARM TOP 5 F
  • Thermal Base Layers Women WARM TOP 5 F
  • Thermal Base Layers Women WARM TOP 5 F
  • Thermal Base Layers Women WARM TOP 5 F
  • Thermal Base Layers Women WARM TOP 5 F
  • Thermal Base Layers Women WARM TOP 5 F
  • Thermal Base Layers Women WARM TOP 5 F
  • Thermal Base Layers Women WARM TOP 5 F
  • Thermal Base Layers Women WARM TOP 5 F
Thermal Base Layers Women WOOL PANT 240 F
  • Thermal Base Layers Women WOOL PANT 240 F
  • Thermal Base Layers Women WOOL PANT 240 F
  • Thermal Base Layers Women WOOL PANT 240 F
  • Thermal Base Layers Women WOOL PANT 240 F
  • Thermal Base Layers Women WOOL PANT 240 F
  • Thermal Base Layers Women WOOL PANT 240 F
  • Thermal Base Layers Women WOOL PANT 240 F
  • Thermal Base Layers Women WOOL PANT 240 F
Thermal Base Layers Men WOOL TOP 150 M
  • Thermal Base Layers Men WOOL TOP 150 M
  • Thermal Base Layers Men WOOL TOP 150 M
  • Thermal Base Layers Men WOOL TOP 150 M
  • Thermal Base Layers Men WOOL TOP 150 M
  • Thermal Base Layers Men WOOL TOP 150 M
  • Thermal Base Layers Men WOOL TOP 150 M
  • Thermal Base Layers Men WOOL TOP 150 M
  • Thermal Base Layers Men WOOL TOP 150 M
  • Thermal Base Layers Men WOOL TOP 150 M
  • Thermal Base Layers Men WOOL TOP 150 M
Thermal Base Layers Men WARM ZIP 5 H
  • Thermal Base Layers Men WARM ZIP 5 H
  • Thermal Base Layers Men WARM ZIP 5 H
  • Thermal Base Layers Men WARM ZIP 5 H
  • Thermal Base Layers Men WARM ZIP 5 H
  • Thermal Base Layers Men WARM ZIP 5 H
  • Thermal Base Layers Men WARM ZIP 5 H
  • Thermal Base Layers Men WARM ZIP 5 H
  • Thermal Base Layers Men WARM ZIP 5 H
  • Thermal Base Layers Men WARM ZIP 5 H
  • Thermal Base Layers Men WARM ZIP 5 H
Thermal Base Layers Women WOOL ZIP 200 F
  • Thermal Base Layers Women WOOL ZIP 200 F
  • Thermal Base Layers Women WOOL ZIP 200 F
  • Thermal Base Layers Women WOOL ZIP 200 F
  • Thermal Base Layers Women WOOL ZIP 200 F
  • Thermal Base Layers Women WOOL ZIP 200 F
  • Thermal Base Layers Women WOOL ZIP 200 F
  • Thermal Base Layers Women WOOL ZIP 200 F
  • Thermal Base Layers Women WOOL ZIP 200 F
Thermal Base Layers Women X-WARM ZIP 5 F
  • Thermal Base Layers Women X-WARM ZIP 5 F
  • Thermal Base Layers Women X-WARM ZIP 5 F
  • Thermal Base Layers Women X-WARM ZIP 5 F
  • Thermal Base Layers Women X-WARM ZIP 5 F
  • Thermal Base Layers Women X-WARM ZIP 5 F
  • Thermal Base Layers Women X-WARM ZIP 5 F
  • Thermal Base Layers Women X-WARM ZIP 5 F
  • Thermal Base Layers Women X-WARM ZIP 5 F
  • Thermal Base Layers Women X-WARM ZIP 5 F
  • Thermal Base Layers Women X-WARM ZIP 5 F
  • Thermal Base Layers Women X-WARM ZIP 5 F
  • Thermal Base Layers Women X-WARM ZIP 5 F
Thermal Base Layers Men JULIOZ 2 H
  • Thermal Base Layers Men JULIOZ 2 H
  • Thermal Base Layers Men JULIOZ 2 H
  • Thermal Base Layers Men JULIOZ 2 H
  • Thermal Base Layers Men JULIOZ 2 H
  • Thermal Base Layers Men JULIOZ 2 H
  • Thermal Base Layers Men JULIOZ 2 H
  • Thermal Base Layers Men JULIOZ 2 H
  • Thermal Base Layers Men JULIOZ 2 H
  • Thermal Base Layers Men JULIOZ 2 H
  • Thermal Base Layers Men JULIOZ 2 H
  • Thermal Base Layers Men JULIOZ 2 H
  • Thermal Base Layers Men JULIOZ 2 H
Thermal Base Layers Women WOOL TOP 150 F
  • Thermal Base Layers Women WOOL TOP 150 F
  • Thermal Base Layers Women WOOL TOP 150 F
  • Thermal Base Layers Women WOOL TOP 150 F
  • Thermal Base Layers Women WOOL TOP 150 F
  • Thermal Base Layers Women WOOL TOP 150 F
  • Thermal Base Layers Women WOOL TOP 150 F
  • Thermal Base Layers Women WOOL TOP 150 F
  • Thermal Base Layers Women WOOL TOP 150 F
Thermal Base Layers Men X-WARM ZIP 5 H
  • Thermal Base Layers Men X-WARM ZIP 5 H
  • Thermal Base Layers Men X-WARM ZIP 5 H
  • Thermal Base Layers Men X-WARM ZIP 5 H
  • Thermal Base Layers Men X-WARM ZIP 5 H
  • Thermal Base Layers Men X-WARM ZIP 5 H
  • Thermal Base Layers Men X-WARM ZIP 5 H
  • Thermal Base Layers Men X-WARM ZIP 5 H
  • Thermal Base Layers Men X-WARM ZIP 5 H
  • Thermal Base Layers Men X-WARM ZIP 5 H
Thermal Base Layers Men WOOL ZIP 240 H
  • Thermal Base Layers Men WOOL ZIP 240 H
  • Thermal Base Layers Men WOOL ZIP 240 H
  • Thermal Base Layers Men WOOL ZIP 240 H
  • Thermal Base Layers Men WOOL ZIP 240 H
  • Thermal Base Layers Men WOOL ZIP 240 H
  • Thermal Base Layers Men WOOL ZIP 240 H
  • Thermal Base Layers Men WOOL ZIP 240 H
  • Thermal Base Layers Men WOOL ZIP 240 H
  • Thermal Base Layers Men WOOL ZIP 240 H
  • Thermal Base Layers Men WOOL ZIP 240 H
Thermal Base Layers Women WOOL ZIP 240 F
  • Thermal Base Layers Women WOOL ZIP 240 F
  • Thermal Base Layers Women WOOL ZIP 240 F
  • Thermal Base Layers Women WOOL ZIP 240 F
  • Thermal Base Layers Women WOOL ZIP 240 F
  • Thermal Base Layers Women WOOL ZIP 240 F
  • Thermal Base Layers Women WOOL ZIP 240 F
  • Thermal Base Layers Women WOOL ZIP 240 F
  • Thermal Base Layers Women WOOL ZIP 240 F
Thermal Base Layers Women X-WARM TOP 5 F
  • Thermal Base Layers Women X-WARM TOP 5 F
  • Thermal Base Layers Women X-WARM TOP 5 F
  • Thermal Base Layers Women X-WARM TOP 5 F
  • Thermal Base Layers Women X-WARM TOP 5 F
  • Thermal Base Layers Women X-WARM TOP 5 F
  • Thermal Base Layers Women X-WARM TOP 5 F
  • Thermal Base Layers Women X-WARM TOP 5 F
  • Thermal Base Layers Women X-WARM TOP 5 F
  • Thermal Base Layers Women X-WARM TOP 5 F
  • Thermal Base Layers Women X-WARM TOP 5 F
  • Thermal Base Layers Women X-WARM TOP 5 F
  • Thermal Base Layers Women X-WARM TOP 5 F
Thermal Base Layers Men WARM PANT 5 H
  • Thermal Base Layers Men WARM PANT 5 H
  • Thermal Base Layers Men WARM PANT 5 H
  • Thermal Base Layers Men WARM PANT 5 H
  • Thermal Base Layers Men WARM PANT 5 H
Thermal Base Layers Men WOOL ZIP 150 H
  • Thermal Base Layers Men WOOL ZIP 150 H
  • Thermal Base Layers Men WOOL ZIP 150 H
  • Thermal Base Layers Men WOOL ZIP 150 H
  • Thermal Base Layers Men WOOL ZIP 150 H
  • Thermal Base Layers Men WOOL ZIP 150 H
  • Thermal Base Layers Men WOOL ZIP 150 H
  • Thermal Base Layers Men WOOL ZIP 150 H
  • Thermal Base Layers Men WOOL ZIP 150 H
  • Thermal Base Layers Men WOOL ZIP 150 H
  • Thermal Base Layers Men WOOL ZIP 150 H
Thermal Base Layers Men X-WARM TOP 5 H
  • Thermal Base Layers Men X-WARM TOP 5 H
  • Thermal Base Layers Men X-WARM TOP 5 H
  • Thermal Base Layers Men X-WARM TOP 5 H
  • Thermal Base Layers Men X-WARM TOP 5 H
  • Thermal Base Layers Men X-WARM TOP 5 H
  • Thermal Base Layers Men X-WARM TOP 5 H
  • Thermal Base Layers Men X-WARM TOP 5 H
  • Thermal Base Layers Men X-WARM TOP 5 H
  • Thermal Base Layers Men X-WARM TOP 5 H
  • Thermal Base Layers Men X-WARM TOP 5 H
Thermal Base Layers Women WARM ZIP 5 F
  • Thermal Base Layers Women WARM ZIP 5 F
  • Thermal Base Layers Women WARM ZIP 5 F
  • Thermal Base Layers Women WARM ZIP 5 F
  • Thermal Base Layers Women WARM ZIP 5 F
  • Thermal Base Layers Women WARM ZIP 5 F
  • Thermal Base Layers Women WARM ZIP 5 F
  • Thermal Base Layers Women WARM ZIP 5 F
  • Thermal Base Layers Women WARM ZIP 5 F
  • Thermal Base Layers Women WARM ZIP 5 F
  • Thermal Base Layers Women WARM ZIP 5 F
  • Thermal Base Layers Women WARM ZIP 5 F
  • Thermal Base Layers Women WARM ZIP 5 F
Thermal Base Layers Men WOOL PANT 150 M
  • Thermal Base Layers Men WOOL PANT 150 M
  • Thermal Base Layers Men WOOL PANT 150 M
  • Thermal Base Layers Men WOOL PANT 150 M
  • Thermal Base Layers Men WOOL PANT 150 M
  • Thermal Base Layers Men WOOL PANT 150 M
  • Thermal Base Layers Men WOOL PANT 150 M
  • Thermal Base Layers Men WOOL PANT 150 M
  • Thermal Base Layers Men WOOL PANT 150 M
Thermal Base Layers Women WOOL PANT 150 F
  • Thermal Base Layers Women WOOL PANT 150 F
  • Thermal Base Layers Women WOOL PANT 150 F
  • Thermal Base Layers Women WOOL PANT 150 F
  • Thermal Base Layers Women WOOL PANT 150 F
  • Thermal Base Layers Women WOOL PANT 150 F
  • Thermal Base Layers Women WOOL PANT 150 F
  • Thermal Base Layers Women WOOL PANT 150 F
  • Thermal Base Layers Women WOOL PANT 150 F
Thermal Base Layers Women WOOL ZIP 150 F
  • Thermal Base Layers Women WOOL ZIP 150 F
  • Thermal Base Layers Women WOOL ZIP 150 F
  • Thermal Base Layers Women WOOL ZIP 150 F
  • Thermal Base Layers Women WOOL ZIP 150 F
  • Thermal Base Layers Women WOOL ZIP 150 F
  • Thermal Base Layers Women WOOL ZIP 150 F
  • Thermal Base Layers Women WOOL ZIP 150 F
  • Thermal Base Layers Women WOOL ZIP 150 F
Thermal Base Layers Women WARM PANT 5 F
  • Thermal Base Layers Women WARM PANT 5 F
  • Thermal Base Layers Women WARM PANT 5 F
  • Thermal Base Layers Women WARM PANT 5 F
  • Thermal Base Layers Women WARM PANT 5 F
Thermal Base Layers Men UNDER
  • Thermal Base Layers Men UNDER
  • Thermal Base Layers Men UNDER
  • Thermal Base Layers Men UNDER
  • Thermal Base Layers Men UNDER
  • Thermal Base Layers Men UNDER
  • Thermal Base Layers Men UNDER
  • Thermal Base Layers Men UNDER
  • Thermal Base Layers Men UNDER
  • Thermal Base Layers Men UNDER
  • Thermal Base Layers Men UNDER
  • Thermal Base Layers Men UNDER
  • Thermal Base Layers Men UNDER

Want to know more? Follow our advice to find the best technical garment suited to your needs. Browse our wide range of clothing to find our hiking thermal base layers.

The most comfortable thermal base layers

Thanks to the use of innovative and technical fabrics, our brand successfully combines comfort, quality and fair pricing. In merino wool, in silk or in fibre of bamboo, Cimalp's technical thermal base layers all deliver comfortable warmth, a optimal insulation and moisture wicking that guarantees hygiene and freedom of movement. Our extreme cold base layers also guarantee an optimal fit and a freedom of movement in your movements. What's more, they are built to last. So don't go without them — you'll soon wonder how you ever managed. 

Our ski thermal base layers: perfect ergonomics

Whether they are long johns to wear under your extreme cold ski trousers or tops, the cuts Cimalp ski base layers always deliver perfect ergonomics to support your favourite activity. They can serve as women's and men's ski base layers, or as extreme cold base layers. Always crafted with user comfort as the top priority, the fabrics Cimalp uses for its thermal base layers are soft to the touch, featuring flat seams, minimal friction and a antibacterial and odour-resistant. The perfect companion for your ski outfit, they are of course meant to be worn as a first layer if you follow the well-known 3-layer rule for your trekking outfit !

What are thermal base layers for?

Thermal base layers are designed to protect your body against cold temperatures during your outdoor activities. Like the t-shirt, they are designed to be worn as a first layer and are made from warm, lightweight and breathable materials.

Moreover, they help regulate your body temperature and keep you warm when exposed to cold temperatures. They efficiently wick away moisture for great comfort. They are designed to be worn directly against the skin and are generally made from synthetic materials or merino wool, which have insulating and breathable properties. Finally, they are very lightweight and compact, making them easy to carry in your backpack. They are also highly versatile and can be worn in a variety of weather conditions, whether in cold and dry weather or in the rain.

Suitable for both athletes and professionals, the base layer can be worn as workwear or for your sporting activities.

How do I choose the right size?

It is important to choose a thermal base layer size that fits your body well, but is not too tight. Base layers that are too tight can restrict blood circulation, which can be dangerous during intense physical activity. It is also important to choose an appropriate length based on your height.

What are the different materials for thermal base layers?

There are several types of materials used for thermal base layers. The most common are polyester, merino wool and nylon, as well as fibre blends. Each material offers advantages and disadvantages in terms of warmth, breathability and weight. It is important to choose the material of your thermal base layers based on weather conditions and the activities you practise. For example, merino wool is ideal for low-intensity activities and cold conditions, while polyester may be preferable for more intense activities and temperate conditions.

Are thermal base layers suitable for all outdoor activities?

Yes, thermal base layers can be used for a wide range of outdoor activities, such as hiking, skiing, snowboarding, running, mountaineering and more. Even in mid-season, a long-sleeved t-shirt or a lightweight thermal base layer will be welcome for keeping the cold at bay. They are particularly useful when you are exposed to cool temperatures and windy conditions. Choosing the right sports t-shirt or thermal base layer matters — don't get it wrong! Feel free to check out our FAQ on thermal base layers which aims to answer as many questions on the subject as possible!

At Cimalp, we offer you a wide choice of men's and women's thermal base layers. Designed and developed in France, our thermal base layers will accompany you in all your activities! If you have any questions or need advice on choosing the one that suits you best, feel free to get in touch.

Complete your outfit with our technical garments and find on our site:

To explore in more detail, check out our merino wool base layers to benefit from the warmth of wool, our men's thermal base layers, our women's thermal base layers as well as our briefs and boxers.

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