Which size should I choose?

Choose your usual size. Sizes are combined (XS/S, M/L, XL/2XL), and the fabric stretches. The size guide on the product page gives the height and weight for each size. If you are between sizes, choose the larger one.

Can it be worn under ski or hiking trousers?

Yes, that’s what it’s designed for: wear it next to the skin under ski or hiking trousers as a base layer for your legs.

Is it enough in extreme cold?

During activity, it is suitable down to around -5 °C under trousers. When you stop, it offers limited warmth from around 5 °C: rely on your outer trousers for extra insulation.

Is it made entirely of silk?

No: it contains 6.4% silk, blended with bamboo viscose, polyester and elastane. The blend gives it a soft feel and stretch.

Does it retain odours?

Its POLYGIENE® treatment limits the growth of odour-causing bacteria, so it can be worn on several outings before washing. How many days depends on exertion and temperature.

How should I wash it?

Wash at 30 °C maximum, without fabric softener: it clogs the fabric’s micropores and slows the release of sweat. Air-dry it and avoid tumble-drying.

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.

Women’s silk thermal leggings - Strategic Pant 5

49,90 €

229 reviews

Insulating

Antibacterial

Breathable

170 g (size S)

Black / blue

Delivered from Mon 16 Nov.

Free returns within 30 days

Free repairs for life

By La Réparerie, our repair service.

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Warm thermal base layer with silk - Women

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STRATEGIC PANT

49,90 €

229 reviews

Delivered from Mon 16 Nov.

Free returns within 30 days

Who did we design it for?

For women who hike, ski or climb and want warm legs under their trousers, with a soft base layer against their skin.

How warm are they?

Rated warm: a base layer for winter activity. When you stop or in extreme cold, trousers over the top provide extra insulation.

How comfortable is it?

Stretchy seamless knit moves with you, with a wide, flat waistband. Bamboo viscose and 6.4% silk make it soft against the skin.

What makes it different?

Our CIMATHERM® Stretch technology combines warmth and freedom of movement, with targeted insulation zones. POLYGIENE® treatment limits odours between outings.

Its performance

Drying time

Very fast

Durability

Highly durable fabric

Stretch

Stretch fabric

Warmth

Warm

Ideal for

Alpine skiing

Cross-country skiing

Ski hiking

Hiking

Snowshoes

Mountaineering

The long johns that fit under your trousers

From the frozen car park to the mountain hut, your legs face changing temperatures. Your base layer needs to stay in place without rubbing.

These thermal leggings combine the softness of silk with a stretchy, seamless knit. They move with you and fit under hiking or ski trousers.

Their insulating zones follow the contours of your body, while the fabric limits odours between outings.

So you can forget you are wearing them, from the trailhead to the mountain hut.

Key features

Seamless knit

Seamless knit designed to reduce chafing.

Flat elastic waistband

Wide, flat-knit waistband for a comfortable fit under trousers.

Close-fitting cut

Tailored fit that follows your body shape.

CIMATHERM® Stretch Technology

POLYGIENE® StayFresh technology

Warmth and freedom of movement for active pursuits in cool conditions.

Effective thermal insulation : retains body heat during effort.
Multi-directional stretch: stretchy fabric that moves with you without restriction.
Comfort in motion : suited to dynamic activities requiring freedom of movement and thermal regulation.

CIMATHERM® STRETCH technology prioritises resistant materials to ensure durability and lasting performance over time.

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.

Details

Specifications

Weight

170g (S)

Brand

Cimalp

Fabrics

62.9% bamboo viscose, 27.9% Polyester, 6.4% silk, 2.8% elastane

Insulation

Warm

Size type

Women's Bottoms

Traceability

Product sheet relating to 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

5.0

Based on 229 reviews

5

96%

4

2%

3

0%

2

0%

1

0%

Customers recommend the usual size

Comfort

Warmth

Breathability

In summary This content is written by AI

Customers love its comfort: most find it very pleasant, soft and lightweight, with a second-skin feel and no chafing or discomfort. Several appreciate its warmth, breathability and ability to insulate against the cold, especially as a base layer, for gravel cycling or running. The quality of the finish and the value for money are also praised. However, it can come up small or feel tight, so choose one size up if you are between sizes.

Bianca.B

Verified customer

Ordered size M/L Ordered color Noir / Rose

Translated review

28/10/2024

The feel against the skin is pure bliss, like wearing thin pajamas that don't restrict movement and keep you nice and warm. I was looking for something to wear for mountain sports, but also primarily for my winter motorcycling. Under jeans, it's completely comfortable and does its job perfectly! Be aware, it's not quite the right fit for curvier figures; if that's you, go up a size. I usually wear a size 38, and I ordered a medium.

Nathalie.V

Verified customer

Ordered size M/L Ordered color Noir / Bleu

Translated review

07/10/2025

I'm 1.74m tall and to get a good length I ordered a M/L; it comes down nicely to my ankles, is comfortable to wear, and soft to the touch. Effective for insulating against the cold as a base layer.

Marielle.R

Verified customer

Ordered size M/L Ordered color Noir / Bleu

Translated review

30/12/2024

I am 1.66m tall and weigh 54kg, and I usually wear a size 36/38. Based on reviews, I opted for a M/L, and it's perfect. I use it for running, for my work in the sheepfold under my overalls... it's very warm and fits very well at the waist and crotch.

Sophie.L

Verified customer

Ordered size M/L Ordered color Noir / Rose

Translated review

01/02/2024

This product is very comfortable to wear. It can be worn under hiking pants, for example, or on its own. According to the measurements, I should have ordered an XS/S, but I ordered an M/L and it fits perfectly.

Mylène.G

Verified customer

Ordered size M/L Ordered color Noir / Bleu

Translated review

19/01/2024

Great leggings, warm and comfortable, ordered in M/L and they fit me perfectly even though I'm 1.60m tall and weigh 54kg, so I think they run a little small but no complaints about the comfort, quality and price!

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F.A.Q

We answer your questions

Need help?

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