THE GORE-TEX MEMBRANE HOW IT WORKS
At the core of GORE-TEX cutting-edge technology is an extremely thin membrane that’s durably waterproof, windproof, and breathable. It has over nine billion pores per square inch. Each pore is 20,000 times smaller than a drop of water, but 700 times larger than water vapor — or sweat. This means that rain is kept out while perspiration vaporizes, so you’ll stay dry no matter what.