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.

Warm men's zip-neck top for trail running

59,90 €

182 reviews

Insulating

Antibacterial

240 g (size M)

Black

Delivered from Wed 4 Nov.

Free returns within 30 days

Available in several versions

Men Women

Crew neck Half-zip

Free repairs for life

By La Réparerie, our repair service.

Complete your outfit

SHADE

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14,90 €

HYBRID

2-in-1 thermal gloves with a windproof flap

39,90 €

ARGENTIERES

59,90 €

182 reviews

Delivered from Wed 4 Nov.

Free returns within 30 days

Who did we design it for?

For trail runners and hikers who train in cold weather and want warmth without restricting their movements.

For those looking for a technical thermal jersey for winter outings, night-time training sessions or cool mornings.

For athletes who want active warmth + freedom of movement in a single layer.

How should you wear it?

To be worn as a base layer next to the skin in cold weather. The thumb loop keeps the sleeves in place under gloves. The back pocket lets you store the essentials. Close-fitting cut, go with your usual size.

What makes the difference?

Its SMART-WARM® insulating fibres deliver an exceptional warmth-to-weight ratio: warm when you need it, breathable when the pace picks up. 100% stretch freedom releases every movement in cold conditions.

Its performance

Breathability

Drying time

Quick

Lightweight

240 g (M)

Stretch

Stretch fabric

Ideal for

Hiking

Trail running

Warm. Breathable. Never restricted.

In cold conditions, the right kit makes the difference between a tough outing and a controlled performance. A thermal jersey that's too thick restricts movement. Too thin, and the cold sets in.

The ARGENTIÈRES H strikes the right balance: active warmth for cold conditions, total breathability when the effort ramps up, and 100% stretch that frees every stride.

From winter trail to high-altitude hiking, it keeps up. Always.

Key features

SMARTWARM® fibres

They provide a genuine feeling of warmth, well-being and softness against the skin.

Anti-odour treatment

Its treatment effectively limits odours and bacteria

Thumb loops and integrated pocket

Thumb loops to protect wrists from cold and wind
Zipped back pocket + reflective prints for safety

Stretch fabric

Its fabric delivers increased stretch, freeing your movements for greater comfort and performance.

POLYGIENE® StayFresh technology

CIMAFLEX PLUS Technology

Contrôle durable des odeurs pour un confort prolongé pendant l’activité.

Technologie anti-odeurs : limite le développement des bactéries responsables des mauvaises odeurs.
Entretien réduit : permet d’espacer les lavages et de prolonger l’usage du vêtement.
Confort préservé : traitement intégré qui n’altère ni la respirabilité ni le toucher du textile.

Développée par Polygiene®, spécialiste des technologies de contrôle des odeurs, la technologie POLYGIENE® STAYFRESH™ assure durabilité et efficacité dans le temps.

Flexibility and performance for dynamic mountain activities.

Technical stretch: fabric designed to move with rapid, committed movements.
quick-drying : efficiently wicks moisture to keep you comfortable during exercise.
Comfort at intensity : supports effort while remaining comfortable to wear as the pace picks up.

CIMAFLEX PLUS technology prioritises resistant materials to ensure durability and sustained performance over time.

Details

Specifications

Weight

240g (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 when washed

Complementary products

+1

AOSTE

Men's durable trail shorts with integrated inner tights

(1045)

69,90 €

+3

RUN HIGH

Merino wool trail running socks - high cut

(105)

18,90 €

UNDER H

Breathable anti-odour technical boxer shorts

(499)

29,90 €

+3

MALAVAL

Neck warmer recycled polyester

(46)

9,90 €

Reviews

4.9

Based on 182 reviews

5

94%

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 appreciate its lightness and comfort, with a soft, pleasant fabric sometimes described as feeling like a second skin. Many find it breathable, while several value the gentle warmth it provides without getting in the way during outings in cool weather, especially running or hiking. Several customers also praise its stretchy, close-fitting cut, along with the practical zipped back pocket. It is particularly well suited to mountain activities and early-morning training.

Ian.E

Verified customer

21/05/2022

Good design, good quality product and great service from CIMALP. There was a problem with the original order but it was speedily addressed with excellent customer service and to my complete satisfaction. Highly recommended

Balazs K.

Verified customer

Height 180cm Usually wears L Ordered size L Ordered color Sapin Usage Randonnée, Alpinisme

26/09/2026

Very comfortable, but smells very quickly, after two hours of hiking, an immedaite wahing is necessary. Unfortunately, the desired colors were not available

michel.p

Verified customer

Ordered size S Ordered color Gris

Translated review

03/07/2024

I ordered a size M in blue, which was a bit too big for me. So I ordered this one in S and it fits perfectly. The quality is excellent: lightweight, breathable, warm, and close-fitting—ideal for winter trail running on Réunion Island. The zipper is a nice touch, and the yellow logo looks great. It's a shame there aren't more color options. I highly recommend it!

JEAN-PAUL.F

Verified customer

Ordered size S Ordered color Bleu

Translated review

17/11/2025

This jersey, ordered in size S, fits me perfectly at 1.80m and 63kg. It's very lightweight and ideal for running. Delivery was very fast, as usual.

Francis.B

Verified customer

Ordered size M Ordered color Violet

Translated review

03/04/2025

Very nice item. The size is a perfect fit for someone 1.78m tall and weighing 77kg. The material is very pleasant and very comfortable.