Which size should I choose?

Choose your usual size, from XS to 3XL. The size guide on the product page gives the waist measurement in centimetres and the corresponding weight for each size.

Do the leg zips rub when walking?

The zips are covered by protective flaps inside and out to reduce rubbing against the thigh. It may take a few outings to get used to the fastening.

How many pockets do these trousers have?

Three zipped pockets: two at the hips and one on the thigh, with a mini compass on its zip pull. The trousers have no back pocket.

Is it suitable for hot summer weather?

Yes. These summer trousers are made from lightweight, quick-drying fabric. When it gets hot, the legs zip off to turn them into shorts.

No. It has a DWR water-repellent treatment that sheds light showers. For prolonged rain, wear waterproof overtrousers over it.

What fabric are these trousers made from?

The main fabric is 88% polyester and 12% elastane, making it stretchy; the inner mesh is 100% polyester. The traceability information notes that washing releases plastic microfibres.

How do you care for these trousers?

Follow the washing instructions on the trousers’ care label. Avoid fabric softener, which can clog the water-repellent treatment. When water no longer beads on the surface, restore the water repellency with a suitable product.

What are the delivery times for this product?

All orders placed by midnight are prepared the next day. In France, orders placed before 1 pm (excluding weekends) with Chronopost 24h are dispatched the same day. Delivery then depends on the carrier and takes 1 to 4 days in France. Delivery times for Europe and the rest of the world vary by destination.

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 2-in-1 convertible hiking trousers - Arcalod

89,90 €

40 reviews

quick-drying

Stretch

Convertible

350 g (size M)

Beige

Delivered from Thu 12 Nov.

Free returns within 30 days

Available in several versions

Men Women

Zip-off Trousers Short length

Free repairs for life

By La Réparerie, our repair service.

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89,90 €

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Delivered from Thu 12 Nov.

Free returns within 30 days

Who did we design it for?

For hikers and trekkers tackling successive summer stages in changeable weather, from cool mornings to warm ridgelines, with just one pair of trousers in their pack.

How do they convert into shorts?

Each leg zips off above the knee: trousers in the morning, shorts when the temperature rises.

What protection does it offer?

A DWR water-repellent treatment sheds light showers, and the fabric dries quickly. These trousers are not waterproof: add a waterproof layer in prolonged rain.

What makes it different?

Our CIMAFLEX technology: stretch fabric, a shaped fit for steep climbs and an elasticated waistband that stays comfortably in place.

Its performance

Lightweight

350 g (M)

Stretch

Stretch fabric

Warmth

Wind protection

Moderate wind, 40 to 60 km/h

Ideal for

Travel

Hiking

Trousers that turn into shorts in seconds

On a summer hike, temperatures change markedly between the valley floor and the ridge. Packing both trousers and shorts takes up weight and space you could use for other gear.

These trousers convert into shorts: simply unzip the legs. The stretch fabric moves with you. A water-repellent treatment sheds light showers, and the fabric dries quickly. Lightweight enough for multi-day treks, they won’t weigh down your pack.

Because in the mountains, adapting quickly beats packing for every possibility. One pair of trousers does the job of two garments.

Key features

Quick-conversion zips

Converts from trousers to shorts with a zip above the knee.

Lightweight quick-drying fabric

- Wicks moisture away to keep you dry during sustained efforts.

Elasticated waistband

- Effective, comfortable elasticated support.

Pre-shaped stretch cut

Natural freedom of movement on steep uphill strides

CIMAFLEX Technology

Freedom of movement and light protection for outdoor activities.

Comfortable stretch: stretch fabric that follows natural movements without restriction.
Water-repellent protection: limits the penetration of light moisture and splashes.
Easy to wear: comfortable material that promotes ease of movement during outdoor activities.

CIMAFLEX technology prioritises durable materials to ensure long-lasting performance and shape retention over time.

Details

Specifications

Weight

350g (M)

Brand

Cimalp

Fabrics

Main fabric: 88% Polyester, 12% elastane; inner mesh: 100% Polyester

Wind resistance

Moderate wind, 40 to 60 km/h

Waterproofing

DWR water-repellent treatment

Size type

Men's Bottoms

Traceability

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

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Reviews

4.8

Based on 40 reviews

5

85%

4

12%

3

2%

2

0%

1

0%

Customers recommend the usual size

Comfort

Ergonomics

In summary This content is written by AI

Customers love its comfort, light weight and versatility: they wear it every day, to work and on hikes, with unrestricted movement thanks to its stretchy fabric. Switching from trousers to shorts is considered very practical when the weather changes, especially in the mountains, while the spacious pockets and low bulk make it easy to take on trips. It accompanied one customer along the 600 km GTA and another at 2,400 m, drying very quickly. One customer even bought a second pair.

Alexis T.

Verified customer

Height 177cm Usually wears L Usage Randonnée

Translated review

06/11/2026

Bought it for the 600 km GTA trek, and I've worn it on every hike since.

Roberto P.

Verified customer

Height 173cm Usually wears M Ordered size M Ordered color Beige Usage Voyage, Randonnée

Translated review

07/11/2026

Extremely comfortable and lightweight pants with large, spacious pockets. I use them mainly for everyday wear and also for trekking. The fact that they convert to shorts makes them extremely practical. After trying them, I bought a second pair. Very satisfied.

Didier.L

Verified customer

Ordered size XL Ordered color Beige

Translated review

22/04/2025

Excellent item, the size fits perfectly my usual 36, very pleasant and lightweight fabric, the partially elastic waistband provides real comfort. I recommend.

Bruno P.

Verified customer

Height 180cm Usually wears L Usage Voyage, Randonnée

Translated review

06/11/2026

Comfortable to wear. Daily use for commuting to work. Easy to convert into hiking shorts and back. Very light and practical with its pockets.

Thibault M.

Verified customer

Height 172cm Usually wears S Usage Randonnée, Voyage

Translated review

06/11/2026

A very practical 2-in-1 pant for sudden weather changes. At 1.72 m tall, I had to go for the short version. Switching from pants to shorts is quite quick. Going from shorts back to pants is a bit trickier—it takes some practice.