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.

EIGER 2 M - Ultra-light 80g breathable t-shirt CIMAFRESH

39,90 €

529 reviews

Navy

Delivered from Wed 4 Nov.

Free returns within 30 days

Available in several versions

Men Women

Plain Two-tone

Free repairs for life

By La Réparerie, our repair service.

Complete your outfit

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Light Wool

Lightweight merino wool socks

16,90 €

EIGER

39,90 €

529 reviews

Delivered from Wed 4 Nov.

Free returns within 30 days

Who did we design it for?

For hikers who stack up outings in warm weather and want a lightweight t-shirt under their pack.

For those who take the sun-drenched trails and want superior UV protection without overloading.

For practitioners ofsummer outdoor activities who want a versatile t-shirt, from lightweight trail to hiking.

How to wear it?

Wear directly against the skin as a summer base layer. Its extra-fine stretch knit minimises friction. More delicate than a thicker fabric, it requires careful washing to last over time.

What makes it different?

The EIGER 2 is the t-shirt for exposed summer outings. Its ultra-fine micro-striped fabric delivers maximum breathability even under mountain sun.

Its performance

Breathability

Drying time

Very fast

Lightweight

80 g (M)

Stretch

Stretch fabric

Ideal for

Hiking

Travel

Trail running

The t-shirt you won't even feel in warm weather.

80g. Ultra-fine micro-striped knit. Maximum breathability. Weightless on the skin.

Lightweight never means unprotected. The EIGER features UPF 40+ sun protection for exposed routes, plus an anti-odour treatment for long mountain days.

Because in hot weather, the best gear is the one you completely forget you're wearing.

Key features

Ultra-fast drying

Active moisture wicking: sweat is continuously drawn away, the fabric stays dry.

Long-lasting anti-odour

Integrated antibacterial treatment: neutralises odours on long mountain days.

Ultra-lightweight fabric

Ultra-light at 80g: you’ll barely notice it, even under a trail running or hiking pack.

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

80 g (M)

Brand

Cimalp

Breathability

Total breathability

Insulation

Warm weather

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

+2

GALIBIER MEDIUM

Men's Hiking Shorts

(176)

69,90 €

+4

RUN LOW

Merino wool trail socks - low cut

(61)

14,90 €

+1

AOSTE

Men's durable trail shorts with integrated inner tights

(1045)

69,90 €

RANDO CONFORT MID

Coolmax® mid-height hiking socks

(48)

14,90 €

Reviews

4.9

Based on 529 reviews

5

95%

4

3%

3

0%

2

0%

1

0%

Customers recommend the usual size

Comfort

Breathability

Quick-drying

In summary This content is written by AI

Customers love how light and comfortable it feels, even after a hot, highly active day. They praise its breathable fabric, which wicks sweat away well and dries very quickly: after a trail run, a hike or a machine wash, it is soon ready to wear again. One customer even rinses it in a stream and finds it dry by mealtime. Its attractive cut is also appreciated, and several buyers have purchased it again, including one customer who has bought three. It is especially suited to trail running, sport and hot weather.

Dave.B

Verified customer

Ordered size M Ordered color Gris

06/06/2023

Excellent t-shirts for mountain walking in hot weather, thoroughly recommended!

Andrew ..

Verified customer

Ordered size XL Ordered color Marine

12/03/2024

Fits well and really comfortable great value as always with Cimalp

Kevin.P

Verified customer

Ordered size M Ordered color Bleu

25/03/2024

Accidentally thrown out but now recovered more for early spring wearing.

Didier C.

Verified customer

Height 185cm Usually wears L Ordered size XL Ordered color Noir Usage Randonnée

Translated review

01/11/2026

I'm a devoted Cimalp fan. This t-shirt ticks all the boxes for trekking. Comfortable, very light in the backpack, and dries super fast. I love the feel of the fabric. I bought one in L and another color in XL, and everything fits perfectly.

Giovanni.G

Verified customer

Ordered size XL Ordered color Gris

Translated review

11/08/2023

The new series (EIGER 2 H) also retains the essential features of its predecessor, both in fit and breathability and quick drying. I also feel the fabric has improved, more resistant to abrasion if you wear it in contact with a backpack. This is the third one I have purchased, and thanks to the very low weight and quick drying, I can face whole days of summer trekking by changing several times; with another Eiger in the backpack, everything becomes easier and more pleasant.