Insulated Jacket Guide

Find the right insulated jacket for your outdoor activity.

Making sure your insulated jacket of choice is correct will mean a much safer and enjoyable adventure in nature.

Klättermusen offers a wide range of insulated jackets suitable for a variety of outdoor activities. Each jacket is specifically designed to be worn either as an outer layer, over your shell jacket, or as a mid layer. Most of our insulated jackets are made to be lightweight and packable to give you maximum versatility in its usage. The activity and conditions determine which jacket is right for you.

Heat Conductivity Resistance (HCR)

To help you navigate insulated jackets in terms of warmth, Klättermusen has developed the Heat Conductivity Resistance (HCR) system. HCR is a performance value for Klättermusen insulated jackets that considers insulation materials, external conditions, and body temperature sensitivity. The system allows you to optimize for the perfect warmth to weight ratio in its usage. Learn more about HCR.
Dig deeper into the range of insulated jackets below or discover our full range directly.

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Explore Insulated Jackets

Light Insulation

Perfect for cooler days or during high-intensity activities, using either down or recycled synthetic insulation materials. Light in insulation, light in weight.

Explore Light Insulation

Heavy Down Insulation

Klättermusen’s heavy insulation jackets rely primarily on down and are ideal for cold and dry conditions. Heavy in insulation, light in weight.

Explore Heavy Down Insulation

Natural Insulation

Wool is a hard-to-beat material when you need both insulation and high breathability. Although not the lightest, wool has the ability to keep you both cool and warm.

Explore Natural Insulation

Activity-Based Insulation

Unsure what best suits your adventures? Discover insulated jackets based on activity.

Explore by Activity

Light Insulation

Photo: Drew Smith

There are many benefits to light insulation. Our light insulation jackets range from HCR values 3 and 5.

Light insulation for year-round in-motion activities

HCR 3 is the best option when you need a jacket for year-round in-motion activities. Primarily based on recycled or bio-based synthetic insulation techniques such as PrimaLoft Gold active+, these jackets are designed to be versatile with fabrics that release excess moisture vapor that builds up during high-intensity activities. The Vale or Alv series is your go-to insulation when you need thermal protection even when you are damp, and the fit is trimmed for maximum body movement. This also makes them perfect under a shell jacket when the wind hits.

Light insulation for cold and dry conditions

HCR 5 jackets have other characteristics that are preferred in dryer and colder weather. Our HCR 5 pieces are primarily made with RDS down insulation. These styles are slightly more spacious and perfect when you need to throw it on during inactivity. For example over a shell jacket when you are setting up camp or taking a break for lunch. Bifrost, Liv, Idun and Atle 2.0 will be your top candidates in this HCR category, combining a light fabric in the core and reinforced fabric on the shoulders for higher abrasion resistance. HCR 5 can also be worn as a mid layer, in which case choose a smaller size than normal to get a tighter fit.

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Atle 3.0 Midweight

Men’s Midweight Down Jacket

$699

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Atle 3.0 Midweight

Men’s Midweight Down Jacket

$699

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Shop Light Insulation

Lopt

Men's Hooded Down Jacket

$459

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Lopt

Women's Zip Down Jacket

$439

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Urd

Men's Hooded PrimaLoft® Jacket

$399

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Urd

Women's Hooded PrimaLoft® Jacket

$399

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Coming Soon

Lödyn

Men's Hooded PrimaLoft® Jacket

$479

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Coming Soon

Lödyn

Women's Hooded PrimaLoft® Jacket

$479

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Aud Zip Hood Jacket Britta

Unisex Britta Marakatt-Labba for Klättermusen

$799

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Aud

Men's Waterproof Zip Hood Jacket

$699

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Bifrost

Men's Hooded Down Jacket

$649

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Bifrost

Women's Hooded Down Jacket

$649

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Atle 3.0 Midweight

Men’s Midweight Down Jacket

$699

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Atle 3.0 Midweight

Women’s Midweight Down Jacket

$699

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Vale

Men's Primaloft® Hooded Jacket

$369

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Vale

Women's Primaloft® Hooded Jacket

$369

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Alv

Men's Primaloft ® Hooded Jacket

$389

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Alv

Women's Primaloft ® Hooded Jacket

$389

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Alfheim

Unisex Cutan® Parka

$549

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Liv 2.0

Unisex Down Sweater

$479

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Liv 2.0

Unisex Light Down Jacket

$519

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Idun 2.0

Unisex Down Tee

$459

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Heavy Down Insulation

Bore 3.0 Heavy

Unisex Heavy Duty Down Jacket

$949

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Klättermusen’s heavy down insulation styles are designed for cold and dry conditions in winter or in more extreme temperatures. Heavy in performance, light in weight. Our heavy insulators range in HCR values between 7 and 9.

Perfect function meets sustainability

Klättermusen’s heavy insulation jackets are made from Responsible Down Standard-certified white goose down. Down is sensitive to both internal and external humidity, which may impact thermal performance - HCR 7 pieces are therefore preferred when in cold and dry conditions. The Bore 2.0 and Farbaute offer the perfect function and sustainability insulation choices.

Heavy down insulation for extreme conditions

Insulated jackets with HCR value 9 build up on HCR 7 with extra functionality and reinforcement to withstand water and wind. They are intended to be used no matter the humidity level or external factors. Nifelheim has excellent wind resistance and water resistant whilst Iving 2.0 is fully wind- and waterproof. Both jackets take attention to details to the next level as compromises are not allowed. Both jackets ensure your safety during extreme cold conditions.

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Bore 3.0 Heavy

Unisex Heavy Duty Down Jacket

$949

Sold Out

Natural Insulation

Benefits of Wool

Natural insulation such as wool outperforms any other insulation material when it comes to moisture wicking, warmth and odor fighting capabilities. Klättermusen offers wool insulation for when you need to keep warm all-year round, regardless of the activity.

For thermal regulation, standard wool is used for both outer layering and inner padding. Recycled wool gives old and worn-out garments new life, and it is a highly effective way of being sustainable. Discover Skoll, Austre and Balderin for your next all-year wool jacket.

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Activity-Based Insulation

It can be difficult to navigate of the full range of insulated jackets. Our jackets are all tailored to give you the maximum possibilities to perform your activity of choice.

Men's Hiking & Trekking

When hiking & trekking you want that slender, fast-drying and moisture-wicking jacket while in motion. During inactivity, throw on a down jacket to keep you warm.

Shop Men's Hiking & Trekking

Men's Skiing

Insulated jackets are perfect for colder days when you need a warming mid layer underneath your shell jacket. The jackets are primarily based on PrimaLoft to keep you warm when in motion.

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Men's Alpinism

Great insulation jackets that can be worn as a warming mid layer or on top of a shell jacket when in inactivity. No matter the season, these jackets will make sure to keep you warm and protected.

Shop Men's Alpinism

Women's Hiking & Trekking

For in motion hiking & trekking you want a slender, moisture-wicking and fast-drying jacket. When in inactivity a down is suggested to keep you warm.

Shop Women's Hiking & Trekking

Women's Skiing

For colder days a light insulated jacket is ideal under a shell jacket. These jackets will keep you warm when in motion and are primarily based on Primaloft.

Shop Women's Skiing

Women's Alpinism

Insulated jackets are the perfect mid layer for alpinism, and down jackets are perfect to throw on during inactivity. These jackets will keep you safe and warm no matter the season.

Shop Women's Alpinism

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Insulated Jacket Guide

Insulated Jacket Guide

Heat Conductivity Resistance (HCR)

Explore Insulated Jackets

Light Insulation

Heavy Down Insulation

Natural Insulation

Activity-Based Insulation

Light Insulation

Light Insulation

Light insulation for year-round in-motion activities

Light insulation for cold and dry conditions

Shop Light Insulation

Heavy Down Insulation

Heavy Down Insulation

Perfect function meets sustainability

Heavy down insulation for extreme conditions

Shop Heavy Down Insulation

Natural Insulation

Benefits of Wool

Natural insulation such as wool outperforms any other insulation material when it comes to moisture wicking, warmth and odor fighting capabilities. Klättermusen offers wool insulation for when you need to keep warm all-year round, regardless of the activity.

For thermal regulation, standard wool is used for both outer layering and inner padding. Recycled wool gives old and worn-out garments new life, and it is a highly effective way of being sustainable. Discover Skoll, Austre and Balderin for your next all-year wool jacket.

Shop Natural Insulation

Activity-Based Insulation

Men's Hiking & Trekking

Men's Skiing

Men's Alpinism

Women's Hiking & Trekking

Women's Skiing

Women's Alpinism