How should I wash this garment to preserve its breathability?

Wash at a maximum of 30°C. The golden rule for sportswear is to avoid fabric softener: it clogs the micro-pores of the fabric and blocks moisture wicking. Air drying is very quick — avoid the tumble dryer.

Does this t-shirt effectively wick away sweat during intense effort?

Yes, its synthetic fibres are designed to capture moisture and transfer it rapidly to the outside. The fabric dries extremely quickly, saving you from the unpleasant cold sensation caused by sweat during rest stops or on descents.

Does this t-shirt retain bad odours after exercise?

To limit this issue — common with synthetic fibres — our technical t-shirts feature a durable antibacterial treatment. It slows the growth of odour-causing bacteria, a real advantage on long outings.

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.

French Montagnard LS 2 H - Long-sleeve trail t-shirt

54,90 €

195 reviews

Antibacterial

compact-able

Ultra-light

120 g (size M)

Navy

Delivered from Thu 29 Oct.

Free returns within 30 days

Available in several versions

Men Women

Short sleeves Long sleeves

Free repairs for life

By La Réparerie, our repair service.

Complete your outfit

SPEED

Technical lightweight trail socks - limited edition

19,90 €

OBIOU

Stretch & ultra-lightweight trail shorts - Men

54,90 €

LE FRENCH MONTAGNARD LS

54,90 €

195 reviews

Delivered from Thu 29 Oct.

Free returns within 30 days

Who did we design it for?

For the trail runners who tackle long distances and want lightweight protection without the risk of overheating.

For those who run in cool weather or on exposed trails and are looking for an ultra high-performance long-sleeve base layer.

For athletes who refuse to choose between absolute comfort and lightweight.

How to wear it?

Wear as a base layer directly against the skin to maximise moisture-wicking. Layers easily under a light windbreaker in changeable weather.

Regular fit, take your usual size.

What makes it different?

At 120g At just 120 g, it is one of the lightest long-sleeved T-shirts. Its long-lasting odour-resistant fabric lets you keep running without restriction or discomfort.

Its performance

Breathability

Drying time

Quick

Lightweight

120g (M)

Stretch

Slightly stretchy fabric

Ideal for

Trail running

The mountain spirit. The lightness of trail running.

"French Montagnard" - it's more than just a name. It's a mindset: authenticity, solidarity, humility.

The French Montagnard is the trail t-shirt that Cimalp runners have sworn by for years. Designed for trail runners who want it all: ultra-light weight, long-sleeve protection, and anti-odour performance for long-distance outings.

Because mountaineers don't overthink. They just head out.

Key features

Packable

Stores in its side pocket

French Montagnard Spirit

Cimalp's iconic collection: authenticity, solidarity, humility
Timeless and technical for all mountain lovers

All-Day Comfort

Stretch for total freedom of movement while running
Maximum breathability and quick-drying during intense effort

Reflective elements

Enhanced visibility during night outings

CIMAFRESH Technology

durable freshness and odour reduction during activity.

Antibacterial action : limits the growth of bacteria responsible for unpleasant odours.
Long-lasting freshness : allows the garment to be worn longer without any feeling of discomfort.
Lasting comfort: treatment* discreet, odourless, without affecting the breathability or feel of the fabric.

CIMAFRESH technology is designed to maintain its effectiveness over time, even after multiple washes, contributing to more durable garment use.

*Antibacterial treatment based on silver chloride (biocidal product).

Details

Specifications

Weight

120g (M)

Brand

Cimalp

Breathability

Total breathability

Insulation

ALL SEASONS

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

Complementary products

+9

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Adjustable Trucker Cap

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(165)

19,90 €

+6

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Double-layer blister-prevention trekking socks

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VERDON

Durable & stretch fleece jacket - Men

(89)

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Reviews

4.9

Based on 195 reviews

5

95%

4

3%

3

1%

2

0%

1

0%

Customers recommend the usual size

Comfort

Breathability

Quick-drying

In summary This content is written by AI

Customers are won over by the comfort of this light, flexible layer, described as feeling like a second skin, with a pleasant, well-fitted cut. Many appreciate its breathability and quick drying, while several point out that it remains comfortable to wear without retaining sweat odours. It is used for training, winter running, hiking and outdoor activities, but also works well for everyday wear. One customer already owns three identical versions. A dependable choice for sport and mid-season conditions.

Adrien.D

Verified customer

Ordered size M Ordered color Blanc

Translated review

07/03/2025

I'm 1.75 meters tall and weigh 75 kg, with a bit of a belly, and I opted for a trail running t-shirt in size M. I really appreciate the cut, which is very comfortable and flattering. The white color is very aesthetically pleasing, although it's slightly see-through at the bottom. I haven't yet had the chance to test the t-shirt when it's completely wet, so I can't say for sure how that affects the transparency. As for the fabric, it's extremely comfortable and pleasant to wear, which is essential for long trail runs. The lightness and breathability of the material are real assets, especially on hot summer days. Overall, I recommend this t-shirt without hesitation. It's an excellent choice for those looking for both style and comfort.

Matthieu.F

Verified customer

Ordered size M Ordered color Marine

Translated review

10/10/2024

I usually wear a small, but I had to get a medium for it to fit! Perfect t-shirt, very light and breathable, dries very quickly and you forget you're even wearing it while running! I recommend it even for runs lasting several hours!

Christophe.T

Verified customer

Ordered size M Ordered color Blanc

Translated review

02/11/2023

Meets our expectations. True to size (M for 173cm height, 99cm chest and 75kg), but fits looser than the t-shirt version. Don't be surprised when you try it on. More suitable for autumn and spring than winter.

Patrick L.

Verified customer

Height 177cm Usually wears L Ordered size 2XL Ordered color Marine

Translated review

26/10/2026

Very good, warm, comfortable, pleasant to wear.

Jean-Pierre.Z

Verified customer

Ordered size XL Ordered color Blanc

Translated review

10/06/2025

A very nice and comfortable T-shirt, especially the long sleeves, designed for hiking in warm weather. Long-sleeved versions are more readily available for winter. But for hikers who have trouble with the sun, it's great to find this type of T-shirt.