Insulation - Active

Active Insulation is a term used to describe clothing layers that keep you warm but allow moisture/sweat to escape. These are the ideal mid-layers to be worn when slogging (and sweating) your way uphill in cool weather and can usually be used as your outer layer too for long glacier approaches.

Polartec® Alpha® is the most commonly used fabric in this category and was originally developed for U.S. Special Forces who required a more advanced insulating material in their combat uniforms. This fabric is a new technology with active insulation that regulates core body temperatures during both dynamic and static activities. It helps eliminate the need to shed or add layers while on the move, something that can be difficult to do on steep terrain and which in any case spoils the momentum of your approach. Pit-zips etc have traditionally helped to balance airflow and warmth, but are not ideal as they do not work all over and they leave surface areas exposed to the elements in the process.

Patagonia have made their own active insulation under the name Nano-Air®. It works just like Polartec® Alpha® and Patagonia's slogan, "Put it on, leave it on" sums it up nicely.
 
At Needle Sports, we are very enthusiastic about this new technology and virtually all of us own and use items featuring Polartec® Alpha® or Patagonia Nano-Air®, or both, and thoroughly recommend it.
Patagonia Men's Nano-Air Vest Black
Patagonia Men's Nano-Air Vest
£126.00
£140.00
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2 In Stock
Patagonia Men's Nano-Air Hoody Forge Grey
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Patagonia Men's Nano-Air Hoody
£198.00
£220.00
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2 In Stock
Patagonia Women's Nano-Air Hoody Cobalt Blue
Patagonia Women's Nano-Air Hoody
£198.00
£220.00
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2 In Stock
Mountain Equipment Men's Transition Jacket Cosmos
Mountain Equipment Men's Transition Jacket Cosmos
£135.00
£150.00
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2 In Stock
Mountain Equipment Women's Transition Tasman Blue
Mountain Equipment Women's Transition Tasman Blue
£135.00
£150.00
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1 In Stock
Rab Men's Paradox Light Pull-On Firecracker
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Rab Men's Paradox Light Pull-On
£99.00
£110.00
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2 In Stock
Rab Women's Paradox Light Jacket Ebony
Rab Women's Paradox Light Jacket
£99.00
£110.00
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2 In Stock
Rab Men's Alpha Direct Jacket Beluga/Oxide
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Rab Men's Alpha Direct Jacket
£180.00
£200.00
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3 In Stock
Rab Women's Alpha Direct Jacket Berry
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Rab Women's Alpha Direct Jacket
£180.00
£200.00
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2 In Stock
Rab Men's Vapour-Rise Guide Jacket Dark Shark
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Rab Men's Vapour-Rise Guide Jacket
£179.99
£200.00
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2 In Stock
Rab Men's Vapour-Rise Guide Pant Black
Rab Men's Vapour-Rise Guide Pant Black
£126.00
£140.00
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2 In Stock
Rab Women's Vapour-rise Guide Pant Black
Rab Women's Vapour-rise Guide Pant Black
£126.00
£140.00
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3 In Stock

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