What is the most effective way to layer for the cold?

The most effective way to layer for the cold is to use a three-layer system that balances warmth, breathability, and protection. Start with a moisture-wicking base layer to keep sweat off your skin and prevent chilling. Add a mid layer that provides insulation while regulating temperature during changing activity levels. Finish with an outer layer: a waterproof, windproof shell for active use in harsh weather, or an insulated jacket for low-activity or extreme cold. Done right, this system keeps you warm, dry, and comfortable without overheating

Where has ThruDark's cold weather layering system been used before?

Our range of insulated jackets, fleeces, base layers and trousers has been worn by Co-Founder Staz in his fastest known ascent of Mount Everest from London as well as his summit of Ama Dablam three years prior. Adventurer Aldo Kane has trusted layers to the bottom of the ocean and the mountains of Banff whilst former Special Forces Operator Jason "Foxy" Fox and team wore the complete layering system for their Arctic Ultra on Project Fire & Ice. Explorer Lucy Shepherd has recently taken ThruDark layers to the South Pole in a record sit ski expedition.

Has ThruDark been worn on the ice ultra previously?

Yes - friends of the brand Jonny Pain and Marc Rhodes have both successfully completed the BTU Ice Ultra wearing the complete ThruDark layering system. Marc even achieved a podium finish in the 2025 Ice Ultra.

Men's Beyond The Ultimate Ice Ultra Kit List

Complete men's kit for the Beyond The Ultimate Ice Ultra arctic challenge. Special... Read More

Complete men's kit for the Beyond The Ultimate Ice Ultra arctic challenge. Specialist cold-weather clothing and equipment for extreme polar racing conditions. From thermal base layers to arctic outerwear, comprehensive loadout for sub-zero endurance events. Gear tested in the harshest environments where standard winter kit fails. Read Less

Arctic Expeditions: Jackets

Arctic Expeditions: Base Layers

Arctic Expeditions: Fleeces & Mid Layers

Gloves & Mitts

A studio shot of Men's Mountain Pro Waterproof Jacket in Coyote Brown (SS)

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MOUNTAIN PRO WATERPROOF JACKET

Packable waterproof jacket

CHF 509

Select size to add to cart:

In stock.

OBLIVION

Lightweight fleece

CHF 125

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In stock.

A studio shot of Men's Mountain Pro Merino Cordura Base Layer Top in Obsidian Black (SS)

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MOUNTAIN PRO MERINO CORDURA® BASE LAYER TOP

Insulated base layer top

CHF 95.90

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In stock.

A studio shot of Guard Beanie in Green (SS)

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GUARD BEANIE

Merino wool beanie

CHF 67.90

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In stock.

A cut-out image of Guard Beanie in Obsidian Black (GM)

A studio shot of Guard Beanie in Obsidian Black (SS)

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GUARD BEANIE

Merino wool beanie

CHF 67.90

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In stock.

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MANTRA FLEECE 1/4 ZIP

Insulated shearling fleece

CHF 199

Select size to add to cart:

In stock.

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MANTRA FLEECE 1/4 ZIP

Insulated shearling fleece

CHF 199

Select size to add to cart:

In stock.

A studio shot of Men's Charge Trousers in Obsidian Black (SS)

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CHARGE TROUSERS

Utility cargo trousers

CHF 335

Select size to add to cart:

In stock.

OBLIVION

OBLIVION

40% OFF

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BASTION DOWN JACKET

Insulated goose down jacket

Regular price CHF 509 Sale price CHF 305

Select size to add to cart:

In stock.

A studio shot of Men's Mountain Pro Merino Cordura Base Layer Bottoms in Obsidian Black (SS)

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MOUNTAIN PRO MERINO CORDURA® BASE LAYER BOTTOMS

Insulated base layer leggings

CHF 84.90

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In stock.

A cut-out image of Guard Beanie in Khaki (GM)

A studio shot of Guard Beanie in Khaki (SS)

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GUARD BEANIE

Merino wool beanie

CHF 67.90

Select size to add to cart:

In stock.

A cut-out image of Guard Beanie in Light Grey (GM)

A studio shot of Guard Beanie in Light Grey (SS)

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GUARD BEANIE

Merino wool beanie

CHF 67.90

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In stock.

A cut-out image of Stealth Balaclava in Khaki (GM)

An in the field image of Stealth Balaclava in Khaki (ITF)

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STEALTH BALACLAVA

Merino wool balaclava

CHF 50.90

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In stock.

A cut-out image of Stealth Neck Gaiter in Obsidian Black (GM)

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STEALTH NECK GAITER

Merino thin neck gaiter

CHF 33.90

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In stock.

A studio shot of Men's Siege Tech Fleece Hooded in Khaki (SS)

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SIEGE TECH FLEECE HOODED

Hooded lightweight fleece

CHF 155

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In stock.

A cut-out image of Stealth Balaclava in Black (GM)

An in the field image of Stealth Balaclava in Black (ITF)

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STEALTH BALACLAVA

Merino wool balaclava

CHF 50.90

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In stock.

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MANTRA FLEECE

Insulated shearling fleece

CHF 229

Select size to add to cart:

In stock.

A studio shot of Men's Siege Tech Fleece Full Zip in Khaki (SS)

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SIEGE TECH FLEECE FULL ZIP

Lightweight fleece

CHF 149

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In stock.

A cut-out image of Men's Stealth Seamless Base Layer Bottom in Obsidian Black (GM)

RESTOCK LANDED

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STEALTH SEAMLESS BASE LAYER BOTTOM

Insulated base layer leggings

CHF 105

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In stock.

A studio shot of Men's Palisade Down Insulated Jacket in Obsidian Black (SS)

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PALISADE DOWN INSULATED JACKET

Insulated waterproof parka

CHF 1,050

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In stock.

A cut-out image of Long Mountain Socks in Black (GM)

RESTOCK LANDED

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LONG MOUNTAIN SOCKS

Insulated merino socks

CHF 33.90

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In stock.

A creative studio shot of Men's Centurion Jacket in Grey (CS)

OBLIVION

30% OFF

A studio shot of Men's Centurion Jacket in Grey (SS)

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CENTURION JACKET (G1)

Breathable soft shell jacket

Regular price CHF 295 Sale price CHF 209

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In stock.

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MANTRA FLEECE 1/4 ZIP

Insulated shearling fleece

CHF 199

Select size to add to cart:

In stock.

A studio shot of Men's Vanguard Jacket in Obsidian Black (SS)

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VANGUARD JACKET

Waterproof jacket

CHF 395

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In stock.

An in the field image of Men's Mountain Pro Waterproof Jacket in Forest Green (ITF)

A studio shot of Men's Mountain Pro Waterproof Jacket in Forest Green (SS)

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MOUNTAIN PRO WATERPROOF JACKET

Packable waterproof jacket

CHF 509

Select size to add to cart:

In stock.

A studio shot of Men's Siege Tech Fleece Half Zip in Wolf Grey (SS)

Lightweight fleece

CHF 125

Select size to add to cart:

In stock.

OBLIVION

40% OFF

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BASTION DOWN JACKET

Insulated goose down jacket

Regular price CHF 509 Sale price CHF 305

Select size to add to cart:

In stock.

An in the field image of Men's Mountain Pro Waterproof Jacket in Obsidian Black (ITF)

A studio shot of Men's Mountain Pro Waterproof Jacket in Obsidian Black (SS)

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MOUNTAIN PRO WATERPROOF JACKET

Packable waterproof jacket

CHF 509

Select size to add to cart:

In stock.

A studio shot of Men's Siege Tech Fleece Hooded in Wolf Grey (SS)

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SIEGE TECH FLEECE HOODED

Hooded lightweight fleece

CHF 155

Select size to add to cart:

In stock.

A cut-out image of Regular Mountain Socks in Black (GM)

RESTOCK LANDED

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REGULAR MOUNTAIN SOCKS

Insulated socks

CHF 28.90

Select size to add to cart:

In stock.

A studio shot of Men's Centurion Jacket in Green (SS)

OBLIVION

30% OFF

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CENTURION JACKET (G1)

Breathable soft shell jacket

Regular price CHF 295 Sale price CHF 209

Select size to add to cart:

Only 11 left in stock!

A studio shot of Men's Siege Tech Fleece Half Zip in Khaki (SS)

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SIEGE TECH FLEECE HALF ZIP

Lightweight fleece

CHF 125

Select size to add to cart:

Only 39 left in stock!

A cut-out image of Guard Beanie in Charcoal Grey (GM)

A studio shot of Guard Beanie in Charcoal Grey (SS)

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GUARD BEANIE

Merino wool beanie

CHF 67.90

Select size to add to cart:

In stock.

A cut-out image of Stealth Tech Warmer in Khaki (GM)

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STEALTH TECH WARMER

Merino blend neck gaiter

CHF 39.90

Select size to add to cart:

In stock.

A studio shot of Men's Siege Tech Fleece Full Zip in Obsidian Black (SS)

Lightweight fleece

CHF 149

Select size to add to cart:

In stock.

A cut-out image of Stealth Tech Warmer in Black (GM)

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STEALTH TECH WARMER

Merino blend neck gaiter

CHF 39.90

Select size to add to cart:

In stock.

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MANTRA FLEECE

Insulated shearling fleece

CHF 229

Select size to add to cart:

In stock.

A studio shot of Men's Phalanx Fleece in Obsidian Black (SS)

OBLIVION

40% OFF

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PHALANX FLEECE (G1)

Insulated lightweight fleece

Regular price CHF 275 Sale price CHF 165

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Only -5 left in stock!

OTHER MATCHES

FAQ'S

The most effective way to layer for the cold is to use a three-layer system that balances warmth, breathability, and protection. Start with a moisture-wicking base layer to keep sweat off your skin and prevent chilling. Add a mid layer that provides insulation while regulating temperature during changing activity levels. Finish with an outer layer: a waterproof, windproof shell for active use in harsh weather, or an insulated jacket for low-activity or extreme cold. Done right, this system keeps you warm, dry, and comfortable without overheating
Our range of insulated jackets, fleeces, base layers and trousers has been worn by Co-Founder Staz in his fastest known ascent of Mount Everest from London as well as his summit of Ama Dablam three years prior. Adventurer Aldo Kane has trusted layers to the bottom of the ocean and the mountains of Banff whilst former Special Forces Operator Jason "Foxy" Fox and team wore the complete layering system for their Arctic Ultra on Project Fire & Ice. Explorer Lucy Shepherd has recently taken ThruDark layers to the South Pole in a record sit ski expedition.
Yes - friends of the brand Jonny Pain and Marc Rhodes have both successfully completed the BTU Ice Ultra wearing the complete ThruDark layering system. Marc even achieved a podium finish in the 2025 Ice Ultra.

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MOUNTAIN PRO WATERPROOF JACKET

Packable waterproof jacket

MOUNTAIN PRO WATERPROOF JACKET

OBLIVION

40% OFF

BASTION DOWN JACKET

Insulated goose down jacket

BASTION DOWN JACKET

CHARGE TROUSERS

Utility cargo trousers

CHARGE TROUSERS

SIEGE TECH FLEECE HOODED

Hooded lightweight fleece

SIEGE TECH FLEECE HOODED

TRENDING

SIEGE TECH FLEECE HALF ZIP

Lightweight fleece

SIEGE TECH FLEECE HALF ZIP

MOUNTAIN PRO MERINO CORDURA® BASE LAYER TOP

Insulated base layer top

MOUNTAIN PRO MERINO CORDURA® BASE LAYER TOP

GUARD BEANIE

Merino wool beanie

GUARD BEANIE

GUARD BEANIE

Merino wool beanie

GUARD BEANIE

MANTRA FLEECE 1/4 ZIP

Insulated shearling fleece

MANTRA FLEECE 1/4 ZIP

MANTRA FLEECE 1/4 ZIP

Insulated shearling fleece

MANTRA FLEECE 1/4 ZIP

CHARGE TROUSERS

Utility cargo trousers

CHARGE TROUSERS

OBLIVION

40% OFF

BASTION DOWN JACKET

Insulated goose down jacket

BASTION DOWN JACKET

SIEGE TECH FLEECE FULL ZIP

Lightweight fleece

SIEGE TECH FLEECE FULL ZIP

CHARGE TROUSERS

Utility cargo trousers

CHARGE TROUSERS

VANGUARD JACKET

Waterproof jacket

VANGUARD JACKET

STEALTH SEAMLESS BASE LAYER TOP

Insulated base layer top

STEALTH SEAMLESS BASE LAYER TOP

MANTRA FLEECE

Insulated shearling fleece

MANTRA FLEECE

STEALTH SKULL BEANIE

Merino wool thin beanie

STEALTH SKULL BEANIE

OBLIVION

40% OFF

BASTION DOWN JACKET

Insulated goose down jacket

BASTION DOWN JACKET

MOUNTAIN PRO MERINO CORDURA® BASE LAYER BOTTOMS

Insulated base layer leggings

MOUNTAIN PRO MERINO CORDURA® BASE LAYER BOTTOMS

GUARD BEANIE

Merino wool beanie

GUARD BEANIE

GUARD BEANIE

Merino wool beanie

GUARD BEANIE

STEALTH BALACLAVA

Merino wool balaclava

STEALTH BALACLAVA

STEALTH NECK GAITER

Merino thin neck gaiter