Can I wear a cotton t-shirt underneath?

This is strongly inadvisable. Cotton retains moisture and dries very slowly, leaving you feeling cold during rest stops. Wear this technical garment directly against your skin.

What should I wear over this garment?

This model is designed to act as a second skin. Its role is to wick away moisture and keep you dry. If it's cold, add a fleece on top (second layer). To protect yourself from the elements, wear a waterproof jacket as your third layer.

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.

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.

Women's extra-warm base layer with zipped stand-up collar

69,90 €

55 reviews

Insulating

Stretch

220 g (size S)

Black

Delivered from Thu 5 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.

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Free returns within 30 days

Who did we design it for?

For women taking part in winter activities in very low temperatures: ski touring, mountaineering, glacier hiking. Ideal for those seeking intense insulation while staying active, with a cut adapted to the female body shape.

How should you wear it?

As a base layer next to the skin, under a hardshell jacket or waterproof membrane on cold-weather outings. The half-zip opens on the ascent to prevent overheating, and closes at rest or on the descent to retain warmth.

What makes the difference?

Its construction dual-fabric combines two complementary insulation zones for targeted thermal comfort in extreme cold. The half-zip collar allows you toadjust the ventilation during exertion without undressing.

Its performance

Drying time

Very fast

Durability

Highly durable fabric

Stretch

Stretch fabric

Warmth

Very warm

Ideal for

Alpine skiing

Cross-country skiing

Ski hiking

Hiking

Snowshoes

Freeride

Mountaineering

Deep cold, zero compromise

Two insulation zones, one garment. The chest and arms each receive the thermal protection they need, without overloading where it isn't necessary. Designed for women, the cut follows the body's shape without restricting movement.

The half-zip at the collar opens with a single gesture mid-effort to expel excess heat — and closes instantly when you stop to preserve your temperature. No more base layer removed and put back on ten times a day.

In deep cold or moderate cold alike, it adapts to your choices: worn alone under a jacket on a fast ascent, or layered with a fleece for exposed bivouacs.

Key features

Dual-fabric construction

- Double thermal barrier to tackle extreme cold conditions.

Stretch fabric

- No restriction of movement thanks to its stretch fabric.

POLYGIENE® StayFresh technology

CIMATHERM® 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.

Targeted warmth suited to activities in cool conditions.

Effective insulation : retains body heat during outings in cool weather.
durable Thermal Comfort : maintains a good thermal balance, both in motion and during rest phases.
Soft-touch fabric : comfortable to wear, even during extended use.

CIMATHERM technology favours resistant materials to ensure durability and long-lasting thermal performance over time.

Details

Specifications

Weight

220g (S)

Brand

Cimalp

Fabrics

Main fabric: 100% Polyester; secondary fabric: 100% Polyester

Insulation

Very warm

Size type

Women's Top

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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VENTURI LS

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Reviews

4.9

Based on 55 reviews

5

96%

4

1%

3

1%

2

0%

1

0%

Customers recommend the usual size

In summary This content is written by AI

Customers especially appreciate its warmth, comfort and quality: many find it very warm, pleasant against the skin and effective in cold weather. They also praise its breathable fabric, which moves with the body; at 7°C, in humidity and a light wind, one wearer found it warm and comfortable. The zipped collar, long cut protecting the sacrum and use as a base layer are considered very practical. Be aware that the fit is often very snug: choose one size up, especially if you prefer more room around the neck.

Elvira.M

Verified customer

Ordered size XS Ordered color Ciel

27/01/2026

Very good quality

Rosanna.C

Verified customer

Ordered size S Ordered color Bleu

Translated review

05/11/2024

Bought in size S for a size 42. Perfect! Very warm, soft, and snug. Recommended. Quick and accurate delivery, as always.

Paola.V