Fleece Series

Original Synthetic Fleece

In 1981, Polartec® forever changed the way the world dresses for cold weather with the invention of polar synthetic fleece.

Polartec® was the first to knit, nap, and shear synthetic yarns into thermal fabric for outdoor apparel. Polyester fibers were engineered for more versatile durability. With greater resiliency, lightweight warmth and fast dry times, Polartec® fleece remains the industry standard for outerwear performance. Polartec® fleece comes in Micro, 100, 200 and 300 weights.

Outerwear’s Ultimate Game Changer.

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300 Fleece Hero Hex 1200X1200

Fleece Features & Benefits







Available in 100% Recycled P.E.T. Plastic

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

Polartec Classic Fleece

Polartec® Fleece

Polartec Classic Fleece Shearling

Polartec® Shearling Fleece

Microfleece 1950x735

Polartec® Microfleece

About Fleece Technology

Nobody knits synthetic fleece better than its original inventors. Imitators have tried, but none have matched our standard of quality found in Polartec® fleece.

Premium polyester yarns are used for their hydrophobic properties, to repel moisture and speed dry times. The lofted structures create thermal air pockets to retain warmth, and still allow optimal breathability. That’s why Polartec® synthetic fleece is still the most dependable, versatile fabric around. Available in Micro, 100, 200 and 300 weights.

Technology 100 Fleece 2020X1110

Featured Collaborations & Media

Tracksmith & Polartec: The Franklin Fleece

Tracksmith is a Boston-based running brand committed to the pursuit of personal excellence and personal records. Guided by the needs of competitive runners, they craft products for training, racing and rest days. Their latest Franklin Fleece Collection features apparel and accessories for cross country and marathon season, when cooler temperatures signal a shift to longer, but no less intense, workouts and races. In designing the collection, we collaborated on a performance fleece specifically designed to for a runner’s needs: one that would retain the essential coziness and style of a fleece, but with the ability to stay comfortable over a long run.

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PolarFleece®: The Original Article

PolarFleece® is the Original Article and brand name for what would become Polartec technical fleece. Today, we relaunched this icon of the New England lifestyle with the customizable Andover Pullover: a modern-retro homage to the original style first introduced in 1981. Made from 100% recycled Polartec® Classic 200 fleece, each garment is cut and sewn in New England, and can be customized in 9 different facets and over a billion different color combinations.

Build Your Own

Creating Fabric from Recycled Bottles

In 2010, we began working with Repreve to take our commitment even further by creating 100% upcycled polyester fabrics. We have transformed more than a billion bottles into the next generation of performance fabrics utilized across our technology platforms. We couldn't have reached this goal without the help of many designers, engineers, activists and consumers dedicated to creating a better future of fabric.

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Purchase garments made with Polartec® Fleece from these e-commerce stores


Backcountry sells outdoor gear and apparel.

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Moosejaw curates and sells all things outdoors.

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High-quality climbing and mountaineering products.

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