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| johnnyf1. 03. 2017 14:52:44 |
Hi,
I have pants and a jacket from a recognized brand with a three-layer waterproof membrane, both intended for light hiking, but I mainly use them for cycling in the rain. I'm wondering if it's normal that practically new pants leak on the seat area after half an hour of use in the rain, the same happens on the shoulders when I have a backpack (in both cases on places where the clothes press against another object, with water coming in between).
Thanks in advance for the answers!
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| 75'er2. 03. 2017 15:40:31 |
Of course. Because you "push" water inside.
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| johnnyf2. 03. 2017 22:59:42 |
ok, so is the "problem" in my expectations about Gore-Tex?
still I don't understand why such clothes aren't made differently, if they turn out to be limitedly functional in expected use. somehow I'd understand about pants (since they're not cycling ones), if even specifically cycling waterproof pants weren't made similarly, just from more durable and stretchy materials on the seat area.
in short, why e.g. the area under backpack straps and on the seat isn't made from completely waterproof material (which doesn't need to "breathe", since the clothing "breathes" on all other parts). it seems to me that would greatly improve usability, with little or almost no worsening of other clothing properties.
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| robi21073. 03. 2017 11:56:00 |
The essence of these membranes is that the size of the membrane pores allows vapor to pass through, but not water. Vapor droplets are much smaller than water droplets, which are held together by surface tension. So vapor can go out, water can't come in. But everything changes when the clothing surface is no longer just droplets, but soaked with water. Then there's no more surface tension holding the droplet together and water penetrates. That's why it's crucial that the clothing surface is well impregnated with a water-repellent agent, reducing the chance of the outer layer soaking. Apparently full waterproofness in cases you mention is only provided by clothes made of completely impermeable material. Then you accept you'll be wet from sweat, not rain. Personally, I don't mind getting wet when already heading home or not stopping at home anymore, but I don't go cycling in rain, at least not if precipitation is more substantial.
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| SamoK3. 03. 2017 11:57:11 |
In clothes, both mountaineering and cycling ones, it's not meant that you stay completely dry with them. It's meant that you're not COMPLETELY SOAKED.
If you want to stay completely dry, you need a roof over your head.
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| johnnyf3. 03. 2017 12:44:19 |
I understand all that pretty well now, but I don't understand why companies don't go for improving functionality. put simply: if they just put a 10x20 "polyvinyl" under the butt, rest stays Gore-Tex, I'd have dry butt, and probably not sweat much more than now.
I almost don't believe no manufacturer has thought of that yet??
@ robi2107: I cycle to work every day regardless of weather, even in showers or winter, each way about half hour. back is ok, but when I arrive at work, somehow can't have wet butt ...
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| grega_z_brega3. 03. 2017 13:42:22 |
Polyvinyl is the solution.
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| robi21073. 03. 2017 14:09:33 |
@johnnyf If so, I'd try in your place a completely waterproof material, e.g. PVC, but then accept that it doesn't breathe and you'll sweat more. In Hofer and Lidl they sell kids' pants and rain jacket a few times a year, with lining for colder weather or without. Label says it breathes, but I think that's larifari, hasn't soaked through yet. I get it yearly for daughter, since like you we cycle to school practically any weather. She's never arrived wet, but true, only ca. 5 min by bike to school. I think adult version exists. Another option seems a poncho covering the seat. Then no sweating, not fully in PVC, and not wet.
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| matejn3. 03. 2017 15:18:12 |
No, it's not normal and if it's really Gore-Tex, nicely return the pants and claim Gore's warranty.
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| johnnyf3. 03. 2017 15:53:01 |
@matejn: well, not Gore-Tex, something else, but basically a brand, so membrane shouldn't be much worse (as far as I know, some membranes are even considered better than Gore-Tex, for a while it was said about e.g. Vaude)
Do you have experiences that what I describe was accepted as warranty claim?
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| matejn3. 03. 2017 16:13:03 |
Membrane is membrane, important is what's on the outer and inner side of the membrane. Unfortunately no one reaches Gore-Tex's knees there.
Gore gives guarantee on their products, regardless of brand, Guaranteed to keep you dry, meaning in the end you can turn directly to them.
I myself have experience with Event jackets and pants, and I'm quite disappointed with durability.
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| grega_z_brega3. 03. 2017 20:03:52 |
If what’s on the outer and inner side were important, then the membrane wouldn't be needed.
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