Long ago, when performing a six day spring ski expedition throughout the Sierra Nevada in Central California the team I was with was advised to employ VBL. staying bad I utilised tiny plastic baggage for my socks and larger plastic bags for my sleeping bags. It was warm during the day, so I only made use of the VBL at nighttime, except for the socks. I wore a skinny layer of polypro (this was twenty five yrs back) and put the plastic bag with holes for my head and arms on.

I’ve also heard of folks utilizing a artificial overquilt along with their bag to attempt to transfer the dew issue from the down and into this outer layer – it looks as if maybe website this process is also applied to clothes?

when, employing this identical TQ at about 11F, but donning thicker layers below it, I needed to bail out and acquire a thicker TQ. Element of the situation was many breath condensation on my Golite TQ near the neck spot. But I'd never ever absent reduced than 14F making use of my HHSS, and always had far more additional insulation down below the hammock, and was in no way this heat. I credit history element of the achievements Using the HHSS more than cover including heat on top rated, as well as the frost bib catching a great deal of the condensation. nevertheless, thinking of how warm I had been- major, again, butt, and feet- at my lowest ever temp within a hammock, I have to are convinced the SWL VB clothing was a huge, significant help. In both heat and dryness. I had been also extremely cozy without any sensation of damp In the VB, aside from my above heating feet. I don’t Believe I at any time listened to Anyone else complain of around heating feet at 6F in a very hammock. any person? The SWL VBs might not have already been all the cause for that heat, but I'm certain they ended up a MAJOR factor.

even so there are still a number of things that confuse me, and I hope you received’t thoughts if I question several issues…

as the temperature throughout your sleeping process isn't consistent, but rather a gradient, the dew place will Furthermore be described as a gradient, and whether or not condensation will take place inside your bag will count each on that gradient and on the level of dampness getting into the procedure (i.e. simply how much you are perspiring), in addition to the porosity from the outer sleeping bag material.

by using a VBL, having said that, this circumstance is way less likely to happen: you'll notice the rainforest-like humidity amount from the microclimate—or, if you actually overdo it, the sweat dripping down your back again—and you may respond by getting rid of layers or raising air flow.

typically to people who find themselves possessing trouble holding warm with the traditional breathable approach. and reporting a couple of of my wonderful success, IOW regarded actuality about what took place, not concept. ( all however no less than a person has claimed he doesn't believe me as well as several Other people who've reported similar achievement).

If a sleeping bag doesn’t breath very well enough then I suppose it could start out finding hefty with humidity. But my experience in Alaska while in the winter was the air was extremely dry along with the down appeared to get the job done very well. Probably I wasn’t out extensive adequate to note the accumulation of H2O in the bag.

I would like we could have connected in advance of that excursion so I might have launched you to definitely the idea of VBLs sooner and saved you some struggling. ????

No big out of doors brands—not even specialized mountaineering companies like Mountain Hardwear or Arc’teryx, whose core customers could arguably profit most—present VBL items.

But Here's the thing: I understand that I am likely to sweat with any number of insulation, at not way cold temps, if I push it that onerous. I just may not be very conscious of it until I prevent, given that my wicking base layers and insulation(fleece or whichever) might be removing it from my skin into the insulation. But that day(along with other very similar days) my cotton shirt was absolutely bone dry. Have you ever ever gotten a chill just after hiking real difficult after which getting a crack, even wearing artificial insulation? I have! Though I felt moist with sweat under the VB immediately after I quit doing exercises, I did or never get yourself a chill. I'm even now warm. And at the time I take out the VB, I come across it and my skin dries really speedy, so that I can promptly throw on the dry parka(if necessary) without the need of obtaining it damp.

Jim M on January 4, 2018 at five:17 pm As often on This website; I found many simple discussion and concepts according to experience. I do think VB is actually a tough topic due to the fact there are actually a lot of variables including individual physiological and psychological differences, temperature, humidity, layer mixtures, time exposed, calories burned, and tolerance for feeling damp.

you would probably probably get some humidity with your daytime outfit but these could possible be dried as a result of overall body warmth or at night inside your bag.

In terms of producing a personal vbl technique, would one thing like lighter rain equipment operate for just a vbl jacket and trousers? one thing like Marmot precip relates to intellect. rather cheap and an easy method to try out a technique to find out if it satisfies anyone.