The brushed, air-trapping nap of the outdoor layer.
- First documented
- 1979
- Fiber
- polyester
- Weave
- napped synthetic knit
- Family
- manufactured
Plate No. 125 · fabric
Fleece
Fleece, properly polar fleece, is a soft, warm, fast-drying napped fabric knitted from polyester and brushed on both faces to raise a dense pile that traps air like wool but weighs less and dries far faster. It was developed in 1979 by Malden Mills in Massachusetts, which sold it under the Polartec name and chose not to patent it, letting the fabric spread freely through the outdoor-clothing world. Later versions are made from recycled plastic bottles, which made fleece an early icon of recycled cloth, though like all polyester it sheds microplastic fibers in the wash.

Named for
Named for the wool fleece it imitates; commonly called polar fleece.
Also known as
polar fleece
Common questions
- What is Fleece made of?
- Fleece, properly polar fleece, is a soft, warm, fast-drying napped fabric knitted from polyester and brushed on both faces to raise a dense pile that traps air like wool but weighs less and dries far faster.
- Where does Fleece come from?
- Fleece comes from Lawrence, Massachusetts, the United States, first documented in 1979.
- What is Fleece named after?
- Named for the wool fleece it imitates; commonly called polar fleece.
Sources & References
- 1.Polar fleece, Wikipedia
- 2.Malden Mills, Wikipedia
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