Highloft Hero Hex 1200X1200
polartec logo

High Loft™

Lightweight Insulation

Polartec® High Loft™ takes fleece comfort and thermal warmth to greater heights.

By creating a patented high loft fiber structure, this material is ultra soft and highly compressible. Extended polyester yarns create large air pockets to retain more thermal warmth, while keeping this insulation lightweight. High Loft™ has the greatest warmth to weight ratio of all Polartec® fleece fabric technologies.

Elevated Fleece Engineering.

Contact Us

High Loft™ Features & Benefits







Available in at least 50% Recycled P.E.T. Plastic

Available in at least 50% Recycled P.E.T. Plastic

Polartec High Loft 1

Polartec® High Loft™

Polartec High Loft 2

Polartec® High Loft™

About High Loft™ Technology

Polartec® High Loft™ is another milestone in the evolution of Polartec’s synthetic fleece fabric platforms.

The body’s natural warmth is contained in thermal air pockets constructed from precision knit, napped, and sheared polyester. High Loft™ consists of hydrophobic yarns that repel moisture and speed dry times. This symmetrical design is not only soft, but also reduces surface friction for versatile layering options.

Technology Highloft 2020X1110
High Loft™ Q&A
A number that describes the relationship between how warm a fabric is and how heavy it is. A higher warmth-to-weight ratio means the fabric has a higher insulation value for a standard unit of weight. Garments with higher warmth/weight will feel warmer with less physiological burden of a heavier garment.
Request a swatch of any of our fabrics by <a href="/contact-us">contacting a member of our sales team</a>.
Garments made with Polartec® High Loft™ fabric can be found in our <a href="/partners/marketplace">Partner Marketplace</a> or by <a href="/partners/where-to-buy-garments-made-with-polartec">shopping at e-commerce retailers</a>.

Shop Polartec® High Loft™

Find garments made with High Loft™ and other Polartec® fabrics from these retailers


Backcountry sells outdoor gear and apparel.

Shop Now


Moosejaw curates and sells all things outdoors.

Shop Now


High-quality climbing and mountaineering products.

Shop Now

Competitive Cyclist

Devoted to delivering a premium bike shop experience.

Shop Now


Evo explores the collaborations between culture and sport.

Shop Now

Steep and Cheap

Deep discounts on outdoor gear & apparel.

Shop Now

Related Articles

Press Releases

Polartec Summer Fleece for Morning Hikes to Late Night Campfires

Made To Partner

Partner Product Release: Reigning Champ

Made To Partner

Polartec Gift Guide: Glamping Edition

Welcome in.

From Industry insider access to community updates, stay in the loop with everything we do.