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Gore-Tex is a breathable, waterproof fabric membrane made from polytetrafluoroethylene (PTFE), which is better known by its trademark name Teflon. It stops water from passing through, while allowing moisture vapor to escape from within, thus providing breathability.
In simple terms, Gore-Tex is a breathable waterproof fabric membrane found in performance and technical clothing—items like ski jackets, raincoats, hiking boots, and work gloves....
The three tenants of Gore-Tex are that is it is wind-proof, waterproof and breathable. So how does a membrane with billions upon billions of tiny pores maintain breathability? Each of the pores is 700 times bigger than a water vapor molecule, which is about 0.27 of a nanometer across.
GORE-TEX boots are great at keeping water out at every angle, but completely dunking your foot in water lets in water from around the ankle—the one place where no waterproof fabric can save you. In other words, total submersion is out of bounds.
Now that we know the difference between waterproof and water-resistant, we can find out if Gore-Tex is waterproof. Yes, it is! It was specifically designed to wick water off your outerwear and keep you dry. The Gore-Tex membrane is what keeps you dry under your outerwear.
If you need reliable, guaranteed, best-in-class protection from mountain storms or downtown showers, or even on a sunny day when the weather takes a turn for the worst, “waterproof” is what you need—and our original GORE-TEX products are where you’ll find it.
That’s what Gore-Tex promises: Waterproof and breathable materials, but it just doesn’t match up. You spend hundreds of dollars on a Gore-Tex waterproof jacket, only to find a few months down the...
Original GORE-TEX products offer guaranteed waterproof, windproof, and breathable protection. So if your heart rate is going to rise and a strong wind and rain are forecast, some GORE-TEX Invisible Fit footwear and a jacket made with GORE-TEX SHAKEDRY™ product technology could be just what you need.
That Hail Mary thrown out by Gore-Tex turned out to be ePe (expanded polyethylene): a new durable, waterproofing membrane that is just as efficacious at repelling water as Gore-Tex’s original ePTFE formula — yes, that’s short for Expanded Polytetrafluoroethylene — but without fluorocarbons.
Is Gore-Tex 100% Waterproof? When talking about outer shell layers, yes, Gore-Tex is 100% waterproof and will block all liquids from passing through the outer layer. It is also breathable which means small amounts of condensation are able to escape the inside of the jacket as you sweat.