You can find some films and critiques on youtube of this extremely-gentle bivvy bag, and it just could possibly be That which you are searhing for to put into pants to make a vapor barrier, because it appears to be like just stretchy ample that it might work…

last but not least, evaporative heat decline is minimized. All sorts of warmth reduction should be diligently managed in chilly situations, plus a VBL is a good way in which to control evaporative warmth reduction.

offered, Im however in spherical Naive.0 of my open up sourced conceptualizing but I can’t shake the urge to both of those theoretically and practically tinker about While using the vision of VBL and non-degradable sleeping systems inside the context of prolonged forays in on the freezing wild.

How will you manage the moisture from your breath while you are sleeping? Sorry for a bit off topic but I soaked my sleeping bag final night in -20C weather (ft and head location) and came in this article looking for humidity administration expertise!

one. RealFeel Temperature®. I don't always use AccuWeather’s patented index, but I do think The reasoning is useful—It's a measure of all of the environmental factors that have an impact on how heat or chilly I'm. This would come with ambient air temperature, wind, Sunlight publicity, precipitation, humidity, and ground address. I discover that I'm able to start to wear VBL gloves in temperatures underneath 40 degrees file, a jacket and socks beneath 20, and trousers down below 10.

Steve Dickens on April 26, 2021 at 9:11 am Andrew, Thanks for your in depth posting. I’ve in no way entirely designed the swap to VBL (in addition to a bag liner for Severe cold). even so, now that I’m having older (65) I need all the help I will get. I’ve been pondering a VBL shirt less than my base layer, but listed here’s what I don’t get. You condition which the VBL method in part is effective in between it will cue the person to shed layers and ventilate faster, as an alternative to ready for years to do so. Perhaps my pores and skin is much more sensitive than most, but I see sweat instantly and get rid of swiftly (I am hypervigilant about that and would by no means allow myself to get damp — to me that threats hypothermia and Loss of life).

A mindful comprehension of ASTM E1643 is needed When picking and installing a powerful underneath-slab vapor proofing procedure. Specifiers and installers alike can benefit from the considerations detailed During this regular exercise.

That said, if/After i have more cash, I do think I’ll Have a look a VBLs. Seems like a fantastic method. Sleeping with down has some compromises, and it seems like the VBLs fix these.

I’d get hypothermic super-speedy if I couldn’t retain Doing work hard. As it's, lunch breaks may be harmful if I’m not very careful to stop out in the wind. I’m imagining a VP layer might be just the thing to help keep my insulation dry, however , you’re saying sweating in VP outfits isn’t enjoyable. How can you stay Safe and sound when you’re sweating tricky during the cold? Keeping my activity to levels right down to wherever I don’t sweat isn’t doable.

I Stay way down in very hot MS, but I are experimenting with Stephenson’s Warmlite all through our winters for numerous many years, working outside, mountaineering in the woods and sleeping out as little as 6F.

Also, and Here is the a person criticism I have of the item, the liners use synthetic insulation, and over time that will flatten out, relative to down. So by getting the warmest liner, you will be offering yourself some buffer when it starts to be fewer heat.

Most likely They may be just reducing convection. I don’t know. I have place a vapor barrier more than my sleeping bag in delicate ailments at altitude and straight away felt clammy. Perhaps it Is that this disagreeable moist experience that keeps the concept of VBL from getting far more well known. I a great deal cherish the idea of climbing into my warm dry sleeping bag in frigid situations plus the considered being unpleasantly moist turns me off to The concept.

We also can generate a accommodate within the House blanket. Just using pack tape. and several bungee for tightening all around waistline, for pants and/or shirt.

On A different matter, the night I ate a dice of butter was the warmest VAPORBA and many at ease night time I have snow camped!