There is some films and evaluations on youtube of this extremely-gentle bivvy bag, and it just may be Anything you are seeking to put into trousers to produce a vapor barrier, since it appears to be like just stretchy adequate that it would perform…

during the day, apart from my base levels, which may turn out to be somewhat moist with perspiration. If I were to count exclusively with a VBL bag liner, perspiration would enter and turn into trapped in my insulated jacket and trousers though I put on them throughout rest stops or in camp.

specified, Im even now in spherical Naive.0 of my open sourced conceptualizing but I can’t shake the urge to equally theoretically and basically tinker about While using the vision of VBL and non-degradable sleeping programs during the context of prolonged forays in to the freezing wild.

nonetheless there are still a number of things that confuse me, and I hope you won’t intellect if I check with a couple of thoughts…

I realized a good deal on this web site and need to thank you for that. I'm crafting you mainly because I have a trekking honeymoon journey scheduled this July in Iceland, And that i care to become Secure, snug and as prepared as is achievable.

what about employing a Room blanket like a liner for sleeping bag? There is possible to purchase it being a sack. It is very mild. If necessary, using light-weight pack tape, you could inbuilt some twine for tightening all around a neck.

Monthly bill Kline on July three, 2018 at eleven:25 am so far as I realize- As well as in my practical experience- the colder the greater In relation to VBs. The big trick to VBs is working with them when It's not at all so cold and/or when your activity is higher. I’d say that you are appropriate any time you say “mainly because as significantly my being familiar with, VBL not allowing the humidity to go through”, although not right using this section: ” it will eventually create trouble at temperatures underneath -30 or -forty diploma celsius.”. I’d say that the colder it is actually outside the house, the more probable itis the down inside your sleeping bag or other insulation will probably be below the dew position, in addition to the more most likely One's body vapor would be to condense to liquid within your insulation and perhaps freeze solid, wiping out your loft.

And my sleeping bag stayed dry and light-weight. Leaving the tent inside the freezing early morning temps, I’d dangle the PJ’s on a nearby bush even though quickly switching into clothing to the day’s hike. A quick, vigorous shake would dislodge the frozen perspiration (ice) from the inside on the VB PJ’s, rendering them All set and dry for another night time’s slumber.

There seems to be a great deal of confusion and secret about VBL’s, and through this information I hope that I managed to boost standard understanding and encourage extra common use by describing what they are, how they operate, and when and how to use them.

But, OTOH, considering that I started out using the SWL with fuzzy stuff, I don’t remember at any time experience disagreeably moist, sticky and clammy, except on People couple of moments After i Permit myself around heat and began outright sweating. And which includes surely occurred, nevertheless even then the moisture did not go into my insulation And that i didn’t undergo evaporative cooling. But, I concur there is a great bit about the entire subject that may be subjective. It could be easy ample to put it on the scientific check so far as heat and loft retention, but I have not viewed that. in addition to my own personalized experiments, with N=one. So, that may be very tiny quantities for the scientific research!

wonderful report and amazing facts! many thanks much for finding it out there. I have been pushing in to the Wintertime camping more and more and have discovered unbelievable profit to employing a VBL.

The MSR Dragontail is far too much. A double-wall tent designed for 3-season disorders could be a better option: a handful of kilos lighter, as well as internal tent will protect more info you from condensation that collects on The within of the rain fly.

you'd probably very likely get some humidity with your daytime outfit but these could possible be dried by means of overall body heat or at night within your bag.

What would you advocate for general heat sleeping as opposed to the particular summit press in which You can find more exertion, it’s even colder/windier and it’s A lot more challenging to lose layers very easily. using a really hard time working out what my program need to be.