---
source_url: "https://www.polartec.com/fabrics/insulation/high-loft?utm_source=openai"
title: "High Loft™ Fleece Fabric | Polartec®"
mirrored_at: 2026-08-08T03:38:52.895Z
host: www.polartec.com
cited_in_42a: true
mirror_canonical: "https://index.42a.ai/www.polartec.com/fabrics/insulation/high-loft__q__utm_source_openai"
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> **Original source:** https://www.polartec.com/fabrics/insulation/high-loft?utm_source=openai

![High Loft™ fabric detail](https://polartec-polartec.transforms.svdcdn.com/production/img/Macro-Fabric-Shot-Desktop-high-loft.jpg?w=450&h=450&auto=compress%2Cformat&fit=crop&dm=1720815153&s=b62700035096c4fc57dba7b178b55491)

![High Loft™ fabric detail](https://polartec-polartec.transforms.svdcdn.com/production/img/HIGH_LOFT_8K.png?w=450&h=204&auto=compress%2Cformat&fit=crop&dm=1719975019&s=e62290a46bec0d71832dbca4d31c21fa)

![High Loft™](https://polartec-polartec.transforms.svdcdn.com/production/img/Macro-Fabric-Shot-Desktop-high-loft.jpg?w=1770&h=1770&auto=compress%2Cformat&fit=crop&dm=1720815153&s=33ec045abbde820b5ddc39a2ca03bbdd)

![Polartec® High Loft™ fleece minimizes weight while maximising warmth and comfort through thermal air pocket technology, for an unmatched warmth to weight ratio. Engineered for softness, the compressible airy high pile fleece design also reduces surface friction for versatile layering options.](https://polartec-polartec.transforms.svdcdn.com/production/img/Lifestyle-Shot-Desktop_2024-07-03-024856_orgg.jpg?w=1600&h=1600&auto=compress%2Cformat&fit=crop&dm=1719974936&s=2d30a71de5287904e36e0a02b5440705)

Polartec® High Loft™ is a softer, loftier fleece that combines an optimal warmth-to-weight ratio with compressibility to deliver a lightweight yet effective insulation layer for extreme conditions. Thanks to its elevated fleece design, Polartec® High Loft™ offers superior thermal insulation while remaining incredibly lightweight and breathable.

The knitted material used to make Polartec® High Loft™ is transformed into soft, versatile fleece through a series of proprietary, specialized surface-finishing techniques. The premium polyester yarns help repel moisture and speed up dry times while the lofted structures create thermal air pockets to retain warmth and still allow optimal breathability. This is why Polartec® synthetic fleece continues to be the most dependable, versatile fabric around.

How does Polartec® High Loft™ differ from other fleece fabrics? Polartec® High Loft™ features proprietary thermal air pocket technology to provide an exceptionally high warmth-to-weight ratio. By creating air pockets in the fleece itself, Polartec is able to increase the insulative properties while keeping the fabric light and compressible for easy packing and layering.

Polartec® High Loft™ uses a high pile design that traps warm air in thermal pockets, providing exceptional warmth without they bulk or weight. In fact, the design is engineered to minimize weight while maintaining the insulative properties needed for cold environments, offering a perfect balance between comfort and warmth.

Yes, Polartec® High Loft™ is highly breathable, allowing moisture to escape while keeping you warm. This breathability makes it ideal for dynamic activities where temperature regulation is essential.

Polartec® High Loft™ effectively wicks moisture away from the skin and dries quickly, even after intense activity, helping you stay comfortable even when on the move.

Yes! One of its main features, in addition to a best-in-class warmth to weight ratio, is its compressibility. Polartec® High Loft™ packs down easily to save space in your kit while still offering superior warmth.

Absolutely! Polartec® High Loft™ is designed to layer comfortably with other fabrics, thanks to its soft, compressible nature. Its low surface friction also makes Polartec® High Loft™ highly versatile and perfect for pairing with other insulation fabrics.

Polartec® High Loft™ is designed for durability, with a high-performance construction that stands up to wear and tear, making it perfect for active outdoor use.

Polartec® High Loft™ is easy to care for. Wash it in cold water, use gentle detergent, and avoid fabric softeners. Hang dry or tumble dry on a low heat setting to preserve the loft and warmth.

If you're interested in using Polartec® High Loft™ for your designs or collections, <a href="#faq" class="open-contact-us-sidebar">Fill out the contact form</a> and our team will gladly assist with your request. If you're looking for inspiration for your designs, be sure to check out Check out <a href="/products">Products</a> and our <a href="/news?Category=Made%20To%20Partner">Made To Partner stories</a>.