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Durable water repellents are commonly used in conjunction with waterproof breathable fabrics such as Gore-Tex to prevent the outer layer of fabric from becoming saturated with water. This saturation, called 'wetting out,' can reduce the garment's breathability (moisture transport through the breathable membrane) and let water through.
The outer layer of Gore-Tex fabric is coated on the outside with a Durable Water Repellent (DWR) treatment. The DWR prevents the main outer layer from becoming wet, which would reduce the breathability of the whole fabric. However, the DWR is not responsible for the jacket being waterproof.
Modern raincoats are often constructed from waterproof fabrics that are breathable, such as Gore-Tex or Tyvek and DWR-coated nylon. These fabrics and membranes allow water vapor to pass through, allowing the garment to 'breathe' so that the sweat of the wearer can escape.
Add to that a down-filled hood, zippered hand-warmer pockets and non-PFC DWR waterproofing, and you’ve got yourself a high-tech coat ideal for frigid winters, all for just 250 bucks. $250 at The ...
GORE-TEX fabric keeps water, wind, and snow from seeping in by any means. ... They feature a double-layered shell capped with DWR finish that blocks moisture so effectively that nothing’s ...
Drop of water on 100% polyester textile. Waterproof/breathable fabrics resist liquid water passing through, but allow water vapour to pass through. Their ability to block out rain and snow while allowing vapour from sweat to evaporate leads to their use in rainwear, waterproof outdoor sports clothing, tents, and other applications.
[citation needed] Also known as "foul weather gear", contemporary oilskins include such innovations as DWR-coated nylon on their low end [2] and Gore-Tex and other proprietary waterproof membranes on the high. [3] A Sou'wester, a traditional form of collapsible oilskin rain-hat, is longer in the back than the front to fully protect the neck. [4]
The "pump" layer and the shell fabric both rely on a durable water repellent treatment; this treatment in combination with the fabric structure of the "pump" layer creates the capillary depression effect that allows water to be driven away from the wearer. In common with other waterproof garment technologies, this water repellent treatment must ...
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