way back, when doing a 6 day spring ski expedition over the Sierra Nevada in Central California the group I used to be with was suggested to make use of VBL. staying inadequate I employed compact plastic bags for my socks and bigger plastic bags for my sleeping baggage. It was warm throughout the day, so I only made use of the VBL during the night, aside from the socks. I wore a thin layer of polypro (this was twenty five many years in the past) and put the plastic bag with holes for my head and arms on.
I’ve also listened to of individuals utilizing a artificial overquilt in addition to their bag to try and transfer the dew point far from the down and into this outer layer – it looks as if perhaps this technique could also be applied to apparel?
1st, perspiration will not likely achieve outer layers like a windshirt, insulated parka, or sleeping bag. This really is massively vital due to the fact in cold situations your perspiration will usually stay
After all, how Lots of individuals do you know who go on Wintertime journeys for weekly or extended? And next, the defining characteristic of VBL’s—their lack of breathability—fully contradicts what buyers are regularly explained to they need in out of doors performance gear—breathability—and therefore The dearth of intuitiveness keeps natural and organic demand small.
So if you expect that in some cases during your outing you might have to strip all the way down to your base layer as a consequence of reasonably heat temperatures, mesh will not be a good choice — extra of a concern on more time trips than quick types.
> Skurka: if you would like absolutely embrace the VBL concept, Then you definately’ll need a watertight zipper. But specified the nominal amount of moisture that passes by way of a zipper, I feel you’d be alright with an ordinary zipper far too.
in these levels: the dew position is someplace among Your system and the surface ambiance, along with your perspiration will condense from h2o vapor into precise water, So wetting the layers.
The sixth follow is the latest to generally be included, and is frequently neglected from the set up method. even so, this is the critical phase and may be adopted in order that the vapor retarder is adequately set up.
I have just come upon this really appealing post and discussion … I'm completely new to your thought of VBL and as such I want to say thank you for this excellent report that has undoubtedly served me fully grasp greater the rules of VBL.
I don't forget Listening to about your epic trek throughout Northern Minnesota. I think I had been Winter season camping within the Boundary Waters around the time you ended up more info passing by.
Also, and this is the a single criticism I have of the product or service, the liners use synthetic insulation, and over time that will flatten out, relative to down. So by acquiring the warmest liner, that you are giving on your own some buffer when it starts to be less heat.
it absolutely was not simply that I built it to 6F Okay, but the fact that I had been incredibly warm and dry! No condensation! (besides about the frost bib as planned). There was no other condensation In the sock. No weight added to any from the insulation from humidity. I was so warm I am aware I might have gone A further 5 or 10 levels Or even far more. lots of folks complain of chilly toes- along with cold butt and back again- in a very hammock, even if temps are only while in the 20s or 30s. But my toes were being more than heating. I felt like they were perspiring. I considered eliminating possibly the booties or wool socks, but in the long run I just Allow it go. In the morning, all insulation and material In the “sock” was bone dry, and when I eradicated my VB socks, my ft were not as wet as I used to be anticipating them being, and dried rapidly from evaporation. My preceding record lows inside a hammock, utilizing possibly Pea Pods or down UQs, were being about 10F. But, while I was heat sufficient, I used to be by no means this warm, even though I wore much thicker layers.
So I get the notion is to prevent any insulating layers of outfits (or sleeping bag) from absorbing the h2o which will come outside of my pores and skin, that's what's going to sooner or later compromise my gear’s ability to continue to keep me heat. I also comprehend the need to regulate The complete physique temperature theory, Which just one needs to learn to adapt and control the human body temperature appropriately. But right here’s my dilemma: isn’t a layer of VBL versus my pores and skin going to make me sweat all the more? although i Make sure you remove levels so I don’t overheat, I have the feeling that the plastic layer would induce a lot of sweat to build up involving my pores and skin as well as VBL by itself, after which the place does this water go?
Bill on January 4, 2018 at four:07 pm Matt, I do not need the trousers, just the shirt, gloves and socks. even though I approximately requested the pants the other day and may well before long do this. But I’m confident the trousers would work just like the shirt under other clothes, it can be created for that quite solution. inside of layer is one area known as fuzzy things, a very thin layer that I have found to get really snug against my bare pores and skin, and dries swiftly in the event the shirt is taken out. I could not surprisingly have on a thin wool layer concerning pores and skin and SWL VB shirt, but i see no ought to Individually. I've sat all-around in my dwelling Together with the shirt on and versus my skin- at about 70F- for a number of hours and did not feel uncomfortable or damp. I've also slept all night in the shirt, gloves and socks at 6F inside a hammock and sufficient insulation and was don't just fully warm, but felt dry acknowledge for my feet.