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Just as VB involves watchful thermal management, it’s also very attainable to control the amount of moisture buildup within a non-VB sleeping procedure by avoiding overheating. In that regard, your position get more info about carrying excess insulation levels beneath your sleeping bag is well taken: that further layer generates yet another temperature gradient among you and also the insulation inside the bag, generating condensation inside the bag (or maybe in the levels) extra likely. I’ve uncovered that, In most cases, trusting the bag to help keep you heat right down to its “comfort ranking” with nominal or no levels, as complicated as it may seem once you initially get into a frigid tent, pays off in the end, and will usually end in a comfortable evening’s slumber without the need to handle a damp VB liner, and with little if any condensation inside the bag.

Most of my half-dozen or so evenings with VBL ended up of the trash-bag/duct tape selection, Though I did at some time acquire a produced liner.

My favourite example of the latter is when I utilised them while taking away ice dams off rooftops in Frisco, CO – the VBL aided to reduce evaporative heat loss and held my insulation dry, which prevented me from receiving chilled by the end of the working day.

the truth is, I resorted to making my very own VBL trousers, jacket, and balaclava for the reason that I was not pleased with what exactly is commercially accessible.

Not the end of the earth, but hugely unpleasant. Certainly, leather-based boots commonly are harder to dry than These manufactured from synthetic products, however “water-resistant” artificial boots gained’t be much better.

just one issue is this will likely lock in an excessive amount vapor. I Commonly rest in only a base layer and vent the bag when I get heat. dresses, and h2o bottles are stored during the bag to avoid freezing at nighttime. Leaking water bottle a potential but up to now has not occurred.

In sum, I are getting to be convinced of the worth of VBL’s and also have tried to search out the limits of their applicability. They are absolutely most crucial on multi-working day excursions in frigid problems, but They're valuable for the two shorter and hotter visits much too.

Andrew Skurka on October 31, 2013 at 8:45 am As long as You're not a prolific sweater, and As long as you take steps in order to avoid excessive perspiration, you ought to be great, especially if you're taking every single opportunity to dry out your future-to-skin layers, like if you establish a hearth, any time you get an abnormally sunny and warm day, or locate a shelter for getting inside out in the chilly.

I would like we could have connected prior to that vacation so I could have introduced you to definitely the idea of VBLs faster and saved you some struggling. ????

Romain on Oct seven, 2016 at 7:27 am Why coat the inside of your trousers in lieu of the outside? could it be as it won’t get wet from my sweat? Wouldn’t it be a lot more at ease if several of my sweat was absorbed by the fabric? thanks so much for this blog article as well as your assistance.

Andrew, do you see on your own possibly doing some factors in different ways looking back on some visits and in a few predicaments experienced you higher utilized hydrophobic down within a snooze system? If this was dealt with somewhere by now I apologize as I might have missed it as I didn’t go through each term right here.

Trouter on February three, 2016 at 10:fifty three pm Andrew, many thanks with the in-depth rationalization with the VBL method. I Winter season camp in northern Minnesota, Hence the temps absolutely warrant loads of imagined on gear, clothing, and tactics of maintaining heat. I’m taking into consideration a VBL liner from Rab (website link underneath). My concern is with regard to the early morning When you’ve slept using a VBL bag or VBL dresses.

So I get the thought is to prevent any insulating layers of outfits (or sleeping bag) from absorbing the drinking water which comes out of my skin, which happens to be what will at some point compromise my equipment’s power to keep me heat. I also comprehend the need to take care of The complete overall body temperature principle, and that one particular really should discover how to adapt and control the human body temperature appropriately. But right here’s my dilemma: isn’t a layer of VBL in opposition to my skin planning to make me sweat far more? whether or not i Be sure to clear away layers so I don’t overheat, I have the sensation the plastic layer would induce many sweat to build up concerning my skin as well as the VBL alone, after which where does this water go?

Windproof outer, and inside with minimum amount Get in touch with. Basically produces a wetsuit impact. Also, I’m positive you’ve heard about it in advance of, but you need to attempt a bivy created with NanoShield. It’s a very waterproof fabric that breathes a good deal much better than a rain jacket. I have a tent designed with it, and I like it lots. A windshell designed with this would weigh little, but be significantly practical.