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

49,90 €

11 reviews

Black

Delivered from Thu 29 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

MERINO SOCKS

Warm merino wool socks

19,90 €

ALPINE

Warm merino ski socks

24,90 €

WOOL TOP 150

49,90 €

11 reviews

Delivered from Thu 29 Oct.

Free returns within 30 days

Who did we design it for?

For the hikers and mountain sports practitioners who are looking for a lightweight first layer for high-output activities in cool conditions.

They sweat during exertion and need a base layer that stays comfortable, anti-odour, without creating a feeling of excessive heat.

This profile wants the natural properties of merino wool in a lightweight and versatile weight.

How should you wear it?

To be worn as a base layer directly against the skin so that merino wool regulates heat and moisture. Layer a fleece or lightweight jacket in cool conditions. Second-skin fit — your usual size.

What makes the difference?

Its merino wool 150g/m² delivers natural warmth in the lightest format in the range: a base layer to wear all year round, even during intense activity in cool conditions.

Its performance

Drying time

Quick

Durability

Durable fabric

Stretch

Stretch fabric

Warmth

Warm

Ideal for

Alpine skiing

Cross-country skiing

Ski hiking

Hiking

Snowshoes

Natural, lightweight, all-seasons.

In the mountains, synthetic base layers manage moisture but trap odours. Wool regulates naturally, but heavier weights feel stifling during exertion.

This base layer solves the problem with 150g of fine merino wool. It actively regulates body heat, wicks moisture without creating a feeling of overheating. It neutralises odours naturally, even after multiple outings.

Because efficiency doesn't need to be heavy. The ideal base layer is the one you don't notice.

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

160g (M)

Brand

Cimalp

Insulation

Warm

Size type

Men's Top

Traceability

Product sheet relating to environmental qualities and characteristics
Manufacturing: China
Weaving/Knitting: China
Dyeing/Printing: China
Releases plastic microfibres into the environment when washed

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Reviews

4.9

Based on 11 reviews

5

90%

4

9%

3

0%

2

0%

1

0%

Customers recommend the usual size

Comfort

Warmth

Breathability

Julien.g

Verified customer

Ordered size S Ordered color Marine

Translated review

18/04/2026

1.75m and 64kg The size S fits perfectly. Bought for hiking in Madeira... I got a 200g and a 150g weight. This one is lighter and therefore performs better in temperatures around 12 degrees Celsius.

Jean.M

Verified customer

Ordered size XL Ordered color Marine

Translated review

05/11/2025

The fabric is incredibly comfortable, the fit is perfect, and the sleeve length is just right for me. The neckline is also very comfortable; it's a shame the bamboo silk version doesn't have the same neckline!

Romuald.A

Verified customer

Ordered size M Ordered color Noir

Translated review

08/12/2025

The contribution of this underwear is very clear. I recommend it.

Odile ..

Verified customer

Ordered size M Ordered color Marine

Translated review

12/11/2025

Soft and warm!