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PU raincoats/silnylon raincoats. Insulation choices for the colorado trail

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PostedJun 3, 2014 at 11:01 pm

I wish I had enough money to buy everything and try it out to see what works best, but instead I need to bother y'all

I currently have a driducks jacket with a modified down puffy with hydrophobic treatment for my shell and mid layer. The driducks has been surprisingly sturdy jacket wise. The pants tore immediately though haha. Anyway I am fearful that on my CT thru hike attempt a similar thing will happen to the jacket and leave me quite wet with a down mid layer. I found a campmor rain jacket from a few years ago and just out of curiosity I weighed it and it was a respectable 12.6 ounces. Its pu coated with decently sized pit zips and plenty of durability. However when testing the coat under the sink and spraying it with a hose I can feel some moisture coming through on the other side of the jacket. My dry ducks does not do this. The idea of a PU jacket is interesting to me because of durability and cost benefits and I believe a workable amount of breathability if there are pit zips. However if the water resistance is shoddy, say less than 10000? should I be worried? It seems like in a rocky mountain windblown rainstorm this could soak through easily, but is this true of all PU rain jackets? Does anybody have any experience with a solid PU rain jacket that is still manufactured? I know there is the tumalo but if all i wanted was a PU coating and pit zips I should perhaps be able to find something even cheaper. I read something about there being a couple different ways of applying the PU coating to maximize fabric breathability but let me emphasize, I just want pit zips for ventilation! If I am so hot that I am sweating a bunch then maybe I shouldn't be wearing the jacket.

If I however stick with the driducks is a down mid layer wise? It got a little wet around the arms and shoulders last time but nothing major. I am more worried about it tearing at a seam so badly my little patches of ductape won't be enough.

It seems like a potentially very attractive option would be a thermawrap with a silnylon jacket. But that would be 250 bucks! Would prefer to avoid that haha!

Lastly I am still torn about using a down quilt inside my event bivy…. it doesn't ever get soaked, but definitely gets decently moist and I am wondering when I am drying it in the sun, if it actually is drying the down or just the fabric…..

Sorry for the long post!!! and as always your advice is much appreciated! Once I become wise I will return the favor!

PostedJun 4, 2014 at 12:07 am

> I am more worried about it tearing at a seam so badly my little patches of ductape won't be enough.

Sounds like your best solution would be to bring the DriDucks and carry a little more duct tape. Instead of taking small patches, bring a good length of it wrapped around a pen. That's still significantly lighter and better than bringing a less waterproof, less breathable PU shell.

Justin Baker BPL Member
PostedJun 4, 2014 at 12:13 am

Condensation in a bivy is not a big deal as long as you have a chance to let it dry in the sun every day. I would just get a regular shelter though. I sometimes sleep with my head in my bag for more warmth which puts a ton of moisture into the bag, but only if I always know there will be sun to dry it out the next day.

I don't know why you would want to use down as a mid layer. Typically mid layer means a layer you might use while hiking and not just around camp (which would be called an insulation layer). Fleece is much better as an active mid layer. I think down at any weight would be way too warm. You might want to consider a very light fleece vest (easy on/off) and a down jacket for warmth at night. That is IF you need more than just a base layer and your rain jacket, you typically need extended cold wet rain to need one.

I use a PU coated rain jacket that I found at a thrift store. It's actually an awesome jacket, nice fit and the fabric seems very durable for being 9 ounces. I'm pretty certain that PU coated jackets won't leak through, the one I have is basically tarp material. The breathability isn't that much of an issue if your only wearing a base layer, because it's just a thin base layer after all, but when it gets cold enough to need a mid layer then you will start to appreciate the breathability.

I've never hiked in Colorado but if you get that much rain you should consider going with something more durable than a dri-ducks jacket.

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