Polar fleece is used in jackets, hats, sweaters, sweatpants, cloth nappies, gym clothes, hoodies, blankets, and high-performance outdoor clothing. It can be made partially from recycled plastic bottles and is very light, soft, and easy to wash. Polar fleece can stretch one way but not as much the other.
Polar fleece originated in Massachusetts in 1979 when Malden Mills, (now Polartec LLC), and Patagonia developed Synchilla (synthetic chinchilla). It was a new, light, strong pile fabric meant to mimic—and in some ways surpass—wool. Aaron Feuerstein intentionally declined to patent Polar fleece, allowing the material to be produced cheaply and widely by many vendors, leading to the material's quick and wide acceptance.
A lightweight, warm, and soft fabric, fleece has some of wool's good qualities but weighs a fraction of the lightest available woolens. Polar fleece garments traditionally come in different thicknesses: micro, 100, 200, and 300, with 300 being the thickest and least flexible.
It is hydrophobic, holding less than 1% of its weight in water. It retains much of its insulating powers even when wet. It is machine washable and dries quickly. It is a good alternative to wool (of particular importance to ones who are allergic or sensitive to wool). It can also be made out of recycled polyethylene terephthalate (PET) bottles, or even recycled fleece. Despite its fuzzy appearance and feel, it is not flammable, but instead melts when exposed to flame.
Regular polar fleece is not windproof and does not absorb moisture (although this is often seen as a benefit, per above). Fleece readily generates static electricity, which causes the accumulation of lint, dust, and pet hair. It is also susceptible to damage from high temperature washing, tumble drying, or ironing. Lower-quality polar fleece material is also prone to pilling.
Berners-Lee reckons the average greenhouse gas footprint of polar fleece in manufacturing carpets at 5.55 kg CO2 equivalent per kilo, when produced in Europe. This gives it almost the same carbon footprint as wool, but with greater durability.
When fleece goes through the laundry, it generates microplastics which become part of domestic waste water. Municipal waste water systems often discharge into rivers and oceans. PET does not biodegrade and suspended microplastics are easily ingested by marine life, thus entering the food chain.
- Polar Fleece history and the history of pile fabrics
- Greenbaum, Hilary; Rubinstein, Dana (2011-11-25). "The Evolution of Fleece, From Scratchy to Snuggie". The New York Times. ISSN 0362-4331. Retrieved 2015-08-03.
- "http://citizensforabetternorwood.blogspot.com/2009/03/xavier-hosting-aaron-feuerstein-on.html". Citizens For A Better Norwood. 2009-06-29. External link in
- Rabbi Avi Shafran (2002-06-22). "Mr. Feuerstein is a legend in the corporate world. His company is now bankrupt and he doesn't regret a thing.".
- "Aaron Feuerstein". 2006-07-07.
- Polartec Windpro web page
- Columbia Layering Guide for Warmth and Comfort by Frank Ross
- Choosing and Using a Quarter Sheet. Discussion of characteristics of wool vs. fleece
- Moisture Buffering
- Mike Berners-Lee, How Bad are Bananas? The Carbon Footprint of Everything (London: Profile, 2010), p. 112 (table 6.1), http://books.google.is/books?id=zs13m5JquBwC&.
- "Blue Hill Group Studying Plastic in Maine Sea". WABI-TV. 2013-10-14. Retrieved 3 May 2014.