Your enter, combined with my First – and trés naive – speculative recommendation, I’m intending to utilize a sleeping bag maker who can customize a bag to incl. a number of the next design and material specifications (barring further developmental solutions, admonitions, tweaks and mods)
Chris Xavier on April twenty, 2016 at 1:sixteen am Hey Andrew, I do know I’m late on the bash but this is basically interesting stuff. I have a handful of queries. My application for this this kind of system will be multi day substantial output alpine climbing in chilly and snowy situations. in any case, if I used to be to include a full VBL match in my setup, would that imply that i could ignore using a fleece and instead select a light-weight down jacket as my Lively insulation layer? (with another better fill jacket for any prevent layer). I determine that considering the fact that i don’t actually need the breathability of the fleece in the situation in which I’m sporting a VPL, i will get a lot more heat for the weight by likely that has a down jacket.
VBL socks may help protect against footwear from getting damp because of perspiration. This results in being a problem on cold mornings since here your footwear will freeze.
Not sure in case you’ve tried out out jackets from Buffalo units United kingdom, but I believe they’d be appropriate up your alley. They use shelled micro pile to generate that same kind of microclimate. Keeps you heat Even when you’re soaking moist, and they don’t weigh that Significantly. difficult to find within the states, but should you’ve ever utilized Marmot DriClime, that’s fundamentally whatever they are, just at the next amount I suppose.
The exact impact will depend upon the down and also the ailments. I also don’t know the outcome of hydrophobic down’s improved dry time. In conditions wherever I might consider a VBL, drying is frequently not an option. It may dry more quickly in 3-season circumstances, but we’re not in Kansas anymore.
Vapor barrier liners can be a pivotal and critical addition to wintertime and shoulder-season clothing and machines devices, especially for those people who are outdoor for very long periods of time in frigid situations. VBL’s protect against loft-reduction, stimulate better thermoregulation, and lessen evaporative heat reduction.
In addition it looks that 1 would need to hold a hotter (and heavier) waterproof down quilt to begin with becoming lessened to donning only a slender foundation layer under the quilt.
You should have examine some incorrect details about synthetic versus down insulation with respect to dew points. The mechanics are the exact same for equally varieties of insulations:
I wish we could have related before that vacation so I might have introduced you to the thought of VBLs sooner and saved you some struggling. ????
But, OTOH, since I began using the SWL with fuzzy stuff, I don’t remember ever experience disagreeably moist, sticky and clammy, except on People few instances Once i Allow myself in excess of heat and started outright perspiring. And which includes certainly transpired, although even then the moisture didn't enter into my insulation And that i didn’t experience evaporative cooling. But, I agree You will find a excellent little bit about the whole issue that is subjective. It would be effortless sufficient to put it to the scientific exam so far as warmth and loft retention, but I have not viewed that. apart from my own individual experiments, with N=1. So, that is incredibly tiny numbers to get a scientific review!
the moment I used to be mountaineering by using a lengthy sleeved cotton shirt over my VB shirt. I'm able to’t keep in mind the temps, although not terribly cold, but cold ample that I would've Typically wanted anything greater than that cotton shirt. (Sure, I realize, cotton, but I had been working day hiking near to household, and was not anxious). it absolutely was receiving late, and I used to be in a very hurry within the return excursion, mountaineering as fast as I could. I could explain to I had been over heating, and must have certainly taken out my shirt, but I did not bother, didn't make time to stop and remove it. I just pushed on thru, and eliminated it when I acquired again to my vehicle. I was very soaked with sweat underneath my Stephenson’s VB shirt. which isn't nice obviously.
The pit zips around the shell matched up While using the pit zips about the pile jacket which matched up Along with the pit zips around the vapor barrier shirt. You didn’t should piece everything collectively, you might source a complete process straight from a person firm. In some ways this was in advance of its time.
there won't be any established regulations, just recommendations, about when you would possibly think about using VBL’s. In deciding whether to make use of VBL’s, and which precise goods to make use of, I look at 4 variables:
Fred Bar on November 27, 2016 at eleven:34 am hi. obtaining performed some Wintertime climbing/camping at RMNP, I am planning to do some additional bigger altitude Wintertime mountaineering/tenting inside the USA before moving on to summits like Huayna Potosi in Bolivia later on this 12 months and Aconcagua in Argentina a while following that. clearly these are typically easier to do than other mountains of exactly the same altitude, but to me altitude would be the principal problem (AMS/HACE/HAPE). My next worry is cold temperature as I are actually Finding out that repeatedly some of the expedition consumers are not able to get to the best resulting from insufficient warming of feet and/or arms and The truth that you need to do feel colder at elevation for a similar temperature at ground stage.