Which size should I choose?

Choose your usual size for a very close fit. For more room, or if you're between sizes, go up a size. Sizes are combined: S/M, L/XL, 2XL/3XL.

How does the hood work?

It's built into the collar. Unfolded, it becomes a balaclava that covers your head and lower face while leaving your eyes clear. Folded down, it works as a neck warmer.

Can you wear it under a helmet?

Yes. Wear the hood under a helmet to cover just your head, or unfold it into a balaclava in very cold weather to cover your lower face too.

What is it made from?

53% polyamide, 40% polypropylene and 7% elastane: a synthetic blend with no wool or silk.

Is it enough in extreme cold?

When active, it's suitable down to around -5 °C under a jacket. When you stop, it may feel too light at 5 °C: add a fleece.

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 it at 30 °C maximum, without fabric softener. Air dry 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.

Men's thermal top with balaclava - Seamless Hoodie

69,90 €

134 reviews

Insulating

Breathable

Antibacterial

205 g (size S/M)

Blue

Delivered from Thu 12 Nov.

Free returns within 30 days

Free repairs for life

By La Réparerie, our repair service.

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SEAMLESS HOOD

69,90 €

134 reviews

Delivered from Thu 12 Nov.

Free returns within 30 days

Who did we design it for?

For high-intensity winter activities in extreme cold: ski touring, cross-country skiing, trail, mountaineering. For anyone who wants to protect their head without adding a layer.

How warm are they?

Rated warm for active use in winter. Unfolded, the balaclava covers the head and lower face. Add a layer over it when you stop.

How breathable is it?

The open-knit panels on the back and in front of the mouth let air and sweat pass through during exercise, and the fabric dries very quickly.

What makes it different?

An integrated hood that unfolds into a balaclava or can be worn as a neck gaiter. Our CIMATHERM® Stretch technology preserves freedom of movement, while the POLYGIENE® treatment limits odours.

Its performance

Drying time

Very fast

Durability

Durable fabric

Stretch

Highly stretchy fabric

Warmth

Warm

Ideal for

Alpine skiing

Cross-country skiing

Ski hiking

Snowshoes

Trail running

Mountaineering

One piece. Total protection.

In very cold weather, your head and face are the last exposed areas you might think to protect with a base layer. This thermal top solves that with a built-in hood: a full balaclava for extreme cold, or a simple neck warmer when it gets warmer.

The seamless knit reduces friction during the repetitive movements of high-intensity activities. The stretch fabric moves with your body in every direction.

One piece replaces both a thermal top and a neck warmer: less volume, less weight, and nothing to hunt for in your pack when the temperature drops.

Key features

Hood convertible into a balaclava

Integrated hood that converts into a full balaclava covering the head and lower face.

Seamless knit

Seamless knit designed to reduce chafing.

Ergonomic fit

A close fit that follows the shape of your body and reduces cold air getting in.

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

205g (S/M)

Brand

Cimalp

Fabrics

53% Polyamide, 40% polypropylene, 7% elastane

Insulation

Warm

Size type

Men's Top

Traceability

Product sheet on environmental qualities and characteristics
Manufacturing: Italy
Weaving/Knitting: Italy
Dyeing/Printing: Italy
Releases plastic microfibres into the environment when washed

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Reviews

4.9

Based on 134 reviews

5

94%

4

5%

3

0%

2

0%

1

0%

Customers recommend the usual size

Comfort

Warmth

Breathability

In summary This content is written by AI

Customers love this warm, enveloping and very comfortable base layer, which remains breathable and wicks moisture well during cross-country skiing, cycling or running in very cold weather. The integrated hood protects against wind, covers the face well and turns into a neck warmer; the soft fabric also helps limit odours, a real advantage for bikepacking. The close fit allows freedom of movement. However, it runs very small: check the size guide carefully and consider sizing up, or even more.

Terry.S

Verified customer

Ordered size S/M Ordered color Bleu

06/12/2023

Great product and good delivery service

Jean-Pierre.L

Verified customer

Ordered size S/M Ordered color Bleu

Translated review

08/02/2023

This underwear is really ideal for cold weather! The size is perfect for me who is 1m89 and 100 chest. I use it especially for bike rides under a Gore tex jacket and the protection is optimal. Very good product!

Bertrand.G

Verified customer

Ordered size S Ordered color Kaki

Translated review

06/01/2026

Very useful for my runs in very cold weather. The hood doubles as a neck warmer when not in use. The L/XL size fits me perfectly at 1.86m and 81kg. The jersey is very close-fitting, making it extremely comfortable to wear.

Jean N.

Verified customer

Ordered size L/XL Ordered color Bleu

Translated review

18/02/2025

Good technical product. Regarding sizing, I'm 1.83m tall and weigh 80kg, and the L/XL fits me well, although the garment is quite close-fitting for an L/XL. The garment is very long, reaching below the buttocks, so it's very enveloping. The hood is a real plus, especially for wearing a helmet, and the face protection is appreciated in case of a storm. So, a good base layer.

Jean M.

Verified customer

Ordered size L/XL Ordered color Noir

Translated review

01/02/2023

Excellent product, used especially on motorcycles in sub-zero temperatures. The hood replaces the balaclava and is more practical because it can be transformed into a turtleneck. Tested also in mountain biking in very cold weather, impeccable.