Capillary action of fur. "*Capillary action* (sometimes *capillarity*, *capillary motion*, or * wicking*) is the ability of a liquid <http://en.wikipedia.org/wiki/Liquid> to flow in narrow spaces without the assistance of, and in opposition to, external forces like gravity <http://en.wikipedia.org/wiki/Gravitation>." http://en.wikipedia.org/wiki/Capillary_action
But I'm not sure what conditions are required to generate enough delta between inside and outside environments that are prohibitive for other jackets, so I am in no way qualified to comment on that specific. But the fur action of the liner is fascinating, and is far superior to my single layer ventile. This is not waterproof in the sense that you couldmake a cup from it, pour water in it and come back an hour later without any drips going through. Stand under a waterfall, you may well get wet because water does eventually soak the cotton and the fur pumping action can only do so much. But in my real world use, this is by far the most practical and dry rainwear I've ever had. I've had the full range of gear (cheap poncho to expensive Gortex, to single layer ventile), and this trip would not have been nearly this dry or warm with any of them. With abandon, Patrick On Monday, July 15, 2013 5:46:44 PM UTC-6, Will wrote: > > There are limits. > > In my closet rests the original Sierra Designs 60/40 parka. The lining is > ventile cotton. It is way cool. > > There is no question that the Sierra Design parka exhausts moisture better > than my Arc'Teryx Gortex parka. Although they are remarkably similar > design-wise. > > That said.. I cannot imagine a parka that can vent against barometric > pressure. If the outside is heavier than the inside, how can you disperse > moisture? > > Will > > On Monday, July 15, 2013 5:56:47 PM UTC-5, Michael wrote: >> >> Wait a second...you actually didn't sweat under those garments? That is >>> amazing. First I have never heard of rainwear that actually keeps you dry >>> from both the rain, and your own sweat! >>> >> >> What were the temps you were riding in? >> >> I have read that breatheable materials don't breathe unless the >> atmosphere outside the garment is cooler and dryer than inside the garment. >> >> > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
