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ReDiscover Alpha™. One of Polartec’s 
most game-changing innovations.

We’re rewinding the story of Polartec® Alpha™. Looking back 
as we prepare to move forward… from its top-secret origins 
to defining the active insulation category. Alpha’s history is 
legendary, and its impact on the outdoor industry is as 
remarkable as it is undeniable.

Code Name:
Alpha.

The internet, GPS, airbags… and Alpha™? Game-changing technology with a common thread… mainstream. Taken for granted. But their origins? Anything but ordinary. Born from top-secret briefs and developed to solve high-stakes challenges.

In Alpha’s case, a solution to meet the needs of professionals operating in unpredictable, unforgiving conditions that few ever face.

Start-stop operations in mountainous terrains bring extreme temperature shifts, in situations where layering up or down is simply not an option.

Polartec’s innovative response was Alpha™. With lofted fibers, a mesh core, and hydrophobic performance, Alpha™ proved that toughness and lightness could coexist, redefining breathability and drying speed. 

Innovation that would shape 
the future of outdoor apparel. Forever…

Alpha™ Features & Benefits.

The [Category] 
Defining Moment. 

Seemingly logic-defying, Alpha™ caught the outdoor industry’s attention for good reasons.
A fabric born from high-performance demands, it offered something unheard of: heat regulation without bulk. Lightweight, compressible, and fast-drying, Alpha™ solved a problem the industry didn’t yet know it had: One layer. All seasons. Any pace.
Active insulation was born.

Alpha™ and, in turn, active insulation brought with it freedom. Freedom for end users, and year-round performance without the need for bulky layering systems. Most importantly, the freedom of design… 

Variety and versatility. 
Key ingredients for creativity…

One fabric, unlimited possibilities.

4004

Style
4004.

Description:

Polartec® Alpha™.
Alpha Direct 90 insulation.
Dyed Solid RC OR.
100% Polyester.

Weight:

Sq yd. 2.5
g/m2. 85

Width:

59 inch
149.9 cm

4024

Style
4024.

Description:

Polartec® Alpha™.
Alpha Direct 190 insulation.
Dyed Solid RC OR.
100% Polyester.

Weight:

Sq yd. 5.5
g/m2. 186

Width:

60 inch
152.4 cm

4048

Style
4048.

Description:

Polartec® Alpha™.
Alpha Direct with Wool for Lining.
63% Polyester, 33% Wool.

Weight:

Sq yd. 4.5
g/m2. 153

Width:

58 inch
147.3 cm

4252

Style
4252.

Description:

Polartec® Alpha™.
Channel Face/Jersey Back Overdyed.
53% Nylon, 47% Polyester.

Weight:

Sq yd. 6.5
g/m2. 220

Width:

52 inch
132 cm

4402RC

Style
4402RC.

Description:

Polartec® Alpha™.
Undyed Alpha 100 insulation.
100% Polyester.

Weight:

Sq yd. 2.9
g/m2. 98

Width:

62 inch
157 cm

4403RC

Style
4403RC.

Description:

Polartec® Alpha™.
Undyed Alpha 80 insulation recycled.
100% Polyester.

Weight:

Sq yd. 2.6
g/m2. 88

Width:

62 inch
157 cm

4405

Style
4405.

Description:

Polartec® Alpha™.
Alpha 60 insulation.
Undyed Recycled.
100% Polyester.

Weight:

Sq yd. 1.9
g/m2. 64

Width:

60 inch
152 cm

4409

Style
4409.

Description:

Polartec® Alpha™.
Alpha 60 insulation.
Dyed Solid Recycled.
100% Polyester.

Weight:

Sq yd. 1.8
g/m2. 61

Width:

58 inch
147.0 cm

4411RC

Style
4411RC.

Description:

Polartec® Alpha™.
Undyed Alpha 120 insulation recycled.
100% Polyester.

Weight:

Sq yd. 3.5
g/m2. 119

Width:

60 inch
152 cm

Naked Attraction:
Alpha™ Direct. 

Alpha™ Direct blurred the lines between performance and style - a designer’s dream with function at its core. Too beautiful to hide.

Made iconic as much by its visibility as its capability, this high-performance insulation with exposed loft and distinctive texture quickly caught the eye of designers everywhere. From a backcountry staple to a street-level statement, it redefined outdoor apparel.

The exposed structure made designers look differently at layering and would go on to influence the modern silhouette. Alpha™ Direct inspired sought-after pieces and sold-out partner collections, from Senchi to Nike ACG. An undisputed modern outdoor classic, made to be seen as much as worn. 

alpha rewind

There can only be one… First of its kind. 
ReDiscover Polartec® Alpha™.

Alpha™ Features & Benefits.

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