Gore-Tex Unraveled,
How warm is gore-tex? Do I need Gore-tex? Did Al Gore invent Gore-tex before or after the global warming?
These are a few examples of the misconceptions the staff here at Breckgear.com confront on a daily basis. We love it when people ask questions; as there is no sound as pleasing to our ears as our own voices, but understand that some people can be a little shy about phoning us up. That is why I, Jasper the dog, will set the record straight on this Gore-tex enigma.
To Dispel the aforementioned myths; Gore-tex itself is about as warm as a plastic grocery bag, you may or may not need Gore-tex, that depends on you and Al Gore invented neither of those things.
A brief bit of history:
Gore-tex is produced by the W.L. Gore and Associates, Inc. which was founded by Bill and Vieve Gore in 1958 when they started fiddling with their chemistry sets (or whatever it is that scientist do while wearing their haughty lab coats). Since then, the company has been producing some pretty amazing barrier layers with a lot of applications. You can find Gore-tex in electrical wiring sheaths, cutting edge surgical procedures and of course fine outdoor gear products.
The chemistry behind Gore-tex is fairly simple. It relies heavily on the fact that water vapor molecules are much smaller than liquid water molecules. Gore-tex is a membrane comprised of millions of tiny cones, the openings at the small end of these cones are bigger than a vapor molecule but smaller than a liquid molecule. Guys, as you get moving in the out of doors your body produces a bunch of sweat which is in turn vaporized by body heat. These molecules are pushed into the large end of the cones and out of the small end because your body is producing a lot more sweat. As in all things, when there is an overcrowding of these molecules in one place they will disperse to greener pastures, so to speak. Girls, a similar process occurs when you exercise except we all know that you don't sweat. Reread that last section and replace the word "sweat" with something like strawberry short cake or glitter or whatever you do. All of this is accomplished without letting any water or wind in.
Why does this matter? A garbage bag is waterproof, but you will probably freeze if you wear one because it doesn't let any perspiration out. Gore-tex does; and it is the best because it allows the most moisture out of any membrane. Thus, no water is hanging around your skin, sucking up all your heat and making you feel uncomfortable.
Gore-tex is a great waterproof breathable membrane but only you know if you need it. Every outdoor gear company has their own membrane or coating to accomplish the same goal, these are great options because they will keep you dry, they will breathe and they help keep the cost down. Its up to you to decide if you need more breathability
Opposable thumbs are for pansies,
Jasper the dog.
