Can I wear a cotton t-shirt underneath?

This is strongly inadvisable. Cotton retains moisture and dries very slowly, leaving you feeling cold during rest stops. Wear this technical garment directly against your skin.

What should I wear over this garment?

This model is designed to act as a second skin. Its role is to wick away moisture and keep you dry. If it's cold, add a fleece on top (second layer). To protect yourself from the elements, wear a waterproof jacket as your third layer.

How do I wash and dry my merino wool garment?

Wash inside out on a delicate or wool cycle (max 30°C and 500 rpm), using a quality detergent and no fabric softener. Avoid the tumble dryer to prevent shrinkage. Leave to dry flat naturally, away from direct sunlight.

What are the delivery times for this product?

If you place your order before 1 pm (excluding weekends), it will be dispatched the same day. Allow 2 to 4 working days for home delivery or collection point delivery within mainland France.

Can I return the item if the size doesn't fit?

Yes, absolutely. You have 30 days to return it and get a refund or an exchange. Return shipping is free. The item must be new, unworn, unwashed, and have its original tag.

Men's Merino Wool Base Layer

69,90 €

367 reviews

Black

Delivered from Tue 27 Oct.

Free returns within 30 days

Available in several versions

Men Women

150 g/m² 200 g/m² 240 g/m²

Free repairs for life

By La Réparerie, our repair service.

Complete your outfit

WOOL PANT 240

CimaWool® merino thermal leggings - Men

69,90 €

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Warm merino wool socks

19,90 €

WOOL TOP 240

69,90 €

367 reviews

Delivered from Tue 27 Oct.

Free returns within 30 days

Who did we design it for?

For men who practise winter activities in extreme cold: ski touring, mountaineering, glacier hiking. Ideal for those looking for maximum natural insulation and prefer the softness of wool over synthetic fabrics.

How should you wear it?

Worn as a base layer against the skin, under a thick fleece or a mountain jacket. Its high weight makes it particularly suited to long rest stops or high-altitude bivouacs. Paired with a fleece, it forms a formidable insulation system.

What makes the difference?

Its thick merino wool offers a intense natural insulation to face the lowest temperatures in the mountains. Soft against the skin, it warms without irritating and naturally manages odours even with prolonged use.

Its performance

Drying time

Quick

Durability

Durable fabric

Stretch

Stretch fabric

Warmth

Very warm

Ideal for

Alpine skiing

Cross-country skiing

Ski hiking

Hiking

Snowshoes

Natural warmth at its peak

For the days when the cold really bites. Thick merino wool creates a natural thermal barrier between you and the cold outside, without adding weight or restricting your movements.

Worn next to the skin, it never itches — even after a long day of skiing or winter hiking. The natural softness of wool against the skin is a comfort that synthetics simply cannot replicate.

And the natural properties of wool limit odours over time — wear it across multiple outings, space out the washes, preserve the garment.

Key features

Coupe seconde peau

- Zéro pli ni bourrelet sous les bretelles du sac ou la veste.

Non-chafing fabric

– No irritation, even worn for several days of hiking.

CIMAWOOL Technology

Natural warmth and thermal regulation for durable mountain comfort.

Natural thermal regulation: helps maintain a stable body temperature, in cold weather and during sustained efforts alike.
Effective moisture management : wool fibres capable of absorbing and wicking away perspiration to keep you dry for longer.
Odour control : reduces the growth of odour-causing bacteria, even during prolonged use.

CIMAWOOL technology prioritises renewable natural fibres, renowned for their long-lasting durability and strength.

Details

Specifications

Weight

233g (M)

Brand

Cimalp

Insulation

Very warm

Size type

Men's Top

Traceability

Product sheet on environmental qualities and characteristics
Manufacturing: China
Weaving/Knitting: China
Dyeing/Printing: China
Releases plastic microfibres into the environment during washing

Reviews

4.9

Based on 367 reviews

5

94%

4

3%

3

1%

2

0%

1

0%

Customers recommend the usual size

Comfort

Warmth

Breathability

In summary This content is written by AI

Customers love its intense warmth, which protects effectively against the cold while remaining lightweight and comfortable to wear. Many use it as a base layer in winter for hiking, skiing or Nordic walking, with positive feedback around 0°C and even in strong winds; some also plan to wear it on a motorbike or in a sleeping bag. The merino fabric is praised for its comfort, to the point of being worn every day. It does run slightly small for some people, so choose a size up if you are between sizes.

OTTO.s

Verified customer

Ordered size XL Ordered color Noir

21/12/2022

superb.,..warm, comfortable, great fit and great quality

Jon.G

Verified customer

Ordered size 2XL Ordered color Noir

23/12/2025

Brilliant ? Love it - I’ll definitely get another one ? Cheers Jon

Sergio ..

Verified customer

Ordered size M Ordered color Marine

Translated review

14/03/2023

Very soft and comfortable to the touch. I've worn it for three days, two of them with intense, prolonged activity. No trace of odour. Dries very quickly and is quite warm

laurent.v

Verified customer

Ordered size XL Ordered color Noir

Translated review

05/01/2026

High-quality product, keeps you warm, true to size, comfortable to wear. Tested at temperatures around zero. Will now be tested at temperatures around -25 degrees.

Alexandre.B

Verified customer

Ordered size S Ordered color Marine

Translated review

04/02/2025

Perfect fit without being too tight, doesn't itch, keeps you warm while remaining very breathable. Tested as a base layer for cycling and running (even without another layer on top in cool weather).