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Product Name: | The North Face Alta Vista Jacket - Men's |
Product Description: | 2.5-layer DryVent™ fabric provides waterproof/breathable protection; PFC-free durable water repellent (DWR) finish sheds moisture and resists stains Pit-zip venting helps you shed heat when the terrain gets tough 3-piece hood with adjustable cord lock adds coverage Exposed, waterproof center-front zipper helps you stay dry A secure-zip chest pocket, an internal drop-in pocket and exposed-zip hand pockets store your trail essentials Jacket packs down to stow in hand pocket Side-hem adjustments and adjustable hook-and-loop cuffs ensure a just-right fit Printed liner adds pizzazz Heat transfer logos on left chest and back-right shoulder Standard fit |
Product SKU: | 200917 |
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"2 layer: Good protection, heavy, durable, good breathability, least clammy, affordable.
2.5 layer: Good protection, lightweight, less durable, best breathability, often clammy, often affordable.
3 Layer: Best protection, light weight, most durable, fair breathability, little clamminess, expensive.
It comes down to what you need. I personally have two types of jackets in my gear closet, 2.5 and 3 layer jackets. If there is a light chance of rain and I need decent protection with minimal weight, I'll take a 2.5 layer jacket. If there is a chance of heavy rain and I'll be working up a sweat, a 3 layer jacket is going in. Pants, however, I always settle for a 2.5 layer, just to cut weight. If you live in an area with little rain, a 2.5 layer makes perfect sense. If you live with constant monsoons, a 3 layer really is the way to go. I don't personally use 2 layer jackets, but if you're just hiking around town or commuting, they have a place."
Edit: And I mean waterproof and windproof still does not help, most fall and winter jackets are windproof and waterproof.. I guess they should put a temperature rating in descritption, or something..
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They are not water proof. They will wet through. It doesn't matter if you buy the most expensive 3 layerjacket on the market, it will wet through eventually.
2 layer / 2.5 layer / 3 layer shells all use PTFE (teflon) membranes. The differences are purely in terms of the lining/exterior.
What determines whether PTFE membrane-based jackets are waterproof or just water resistant depends on how porous the membrane is.
Normally these jackets have a membrane with a hydrostatic head that is high enough to make them waterproof even in heavy rain (as long as they are properly seam sealed, and except for unusual designs like goretex shakedry where the membrane is on the exterior, they also need to be DWR coated on the outside to be breathable, because once the exterior is wet it will stop breathing).
However, even PTFE membrane jackets can be designed to be more breathable but not completely waterproof if the membrane is more porous. This is what things like gore-tex active/windstopper are.
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EDITED: oh no I went deeper into comments. Confusion. Are rain jackets even classified with layers? I don't know anymore. Is this waterproof or just water resistant. I know less than I knew 4 mins ago.
Don't go by layers. A 3 layer ascentshell ( or neoshell pro) jacket is more breathable and lightweight than most 2.5 layer jackets. Columbia outdry is a 2 layer membrane that is more waterproof than most 3 layer jackets but not lighter. Go by the technology being used. Most of these generic 2.5 layer jackets are probably worse in almost every aspect than even goretex. They're pretty good for around town and the occasional hike and priced accordingly.
https://www.columbia.co
https://www.columbia.co