There's some films and evaluations on youtube of the ultra-mild bivvy bag, and it just might be Everything you are trying to find to put into pants to produce a vapor barrier, as it appears just stretchy sufficient that it'd work…

They take a bit a lot more time to placed on than in case you had been to just slide into a mummy. During the day, don’t fail to remember to show them within out and dry them out.

issue is even though the hotsac is not actually impermeable and may only decrease moisture transportation by 85%. The toes space in the versalite continue to picks up some moisture Using the hotsac being a liner. A true vbl is needed for extended Winter season tenting.

As for the torso and legs meticulous exertion Handle and venting are essential. a single good thing about the vapor barrier is early detection of overheating for the level of exertion and insulating layers becoming worn. Fortunately that moisture never reaches your insulating levels.

So in case you count on that in some cases all through your outing you may need to strip right down to your foundation layer as a consequence of rather warm temperatures, mesh will not be a good selection — a lot more of a priority on lengthier trips than small kinds.

1 worry is this will likely lock in too much vapor. I Commonly rest in just a base layer and vent the bag when I get heat. apparel, and water bottles are held while in the bag to stop freezing at nighttime. Leaking drinking water bottle a possible but to date hasn't occurred.

In this kind of case, humidity made by the body wouldn't website enter the insulation (in the morning, the accumulated inner humidity can be wiped dry by a light-weight towel to then be frozen followed by a defrosting-by-shaking). humidity from any source outside of the bag’s external shell could not enter insulation.

Do you obtain so moist that your upcoming-to-skin levels need to be transformed Each and every morning and dried out? Do you only get up and soar into An additional alter of base levels? Do you obtain wet adequate that you've to dry off with one thing? Or would you kind of just stay in a perpetual condition of dampness? many thanks for all the great facts and responses!

This cloth is significant, and it offers much less adjustability than a three-piece system consisting of a thin foundation layer, VBL shirt, and an outer layer like a windshirt or ultralight insulated parka. Without extend, these fabrics are impractical for pants mainly because they are so constricting. the one possibility is to create baggy pants, which aren't conducive to making a modest microclimate close to the skin.

But, OTOH, given that I started out utilizing the SWL with fuzzy things, I don’t try to remember at any time experience disagreeably moist, sticky and clammy, besides on those handful of occasions After i let myself above heat and started outright perspiring. And which has surely happened, although even then the humidity didn't go into my insulation and I didn’t endure evaporative cooling. But, I concur There exists a very good little bit about the complete subject matter that may be subjective. It will be effortless enough To place it towards the scientific test in terms of warmth and loft retention, but I have not observed that. besides my very own personalized experiments, with N=one. So, that is extremely compact figures for just a scientific research!

Also, and Here is the 1 criticism I have of the item, the liners use synthetic insulation, and with time that can flatten out, relative to down. So by buying the warmest liner, you're giving oneself some buffer when it starts to be fewer warm.

It became straight away obvious that my sleeping and outfits method, which was simply a hotter Edition of a conventional light-weight setup, failed to adequately deal with perspiration and loft-reduction.

The RBH stuff is going to be A great deal nicer, a lot more multi-use because of to higher appears, And that i want some. But I can inform you this Considerably less costly things, worn underneath anyway exactly where it cannot be viewed, will thoroughly get the job completed. These people KNOW VB idea and application, that is certainly of course:

large problem which was really hard to resolve was the skin on my arms cracking since they dried out a lot, moisturiser repeatedly daily hardly helped. For another trip I got some latex type gloves within the pharmacy , slender enough to use underneath liner gloves they kept my arms moist and stopped the cracking.