Originally Posted by warbonnetguy
poncho's are sil. the outermost layer should protect from wind as well as windblown rain especially if there is down or synthetic under the hammock. it seems that loose sil under the hammock might not have the condensation problems you are affraid of. consider a sil shell that hangs so that there is a couple of inches of air gap between it and the bottom of the hammock. this provides more insul. like jeff said, but also gives room for body vapor to evaporate into, and assuming the thing is not sealed around the edges, that vapor wouldn't necesssairly be trapped. in fact when wind blows, it would even act as a bellows and force said air out of the system, but would still protect from direct wind gusts and windblown rain. just something to consider. also, for that matter, since it is open on top unlike the garlington insulator full hammock sac thing, any body vapor inside the loose sil undercover could just come back through the breathable hammock body anywhere there is not a bodypart laying there to stop it, and could escape through the breathable hammock fabric also, this is how heat escapes when there are large air pockets in an underquit, the air pockets don't have to go all the way to the side of the quilt, they just have to be large enough to lead out from under the edge of your body/sleeping bag and will then release air through the hammock itself and into the sleeping area where its gone forever. if the sil shell hangs loose what would keep body vapor from evaporating back through the breathable hammock?
Good points. I was thinking about the packa also. With the large pit zips and roomy fit, air is allowed to move around.
I'll admit I haven't a clue as to what combinations might be beneficial, so your thoughts were helpful.