VAPOR BARRIER LAYER (VBL) in full effect!
A week and a half ago I performed an experiment, based on information
on VBLs I read in Robert Wood's Pleasure Packing, recommended by GP.
Below is my report, as posted to Facebook. My friends made a lot of
fun of me, but I'm okay with that :)
12:19 PM: I am wearing a plastic dry cleaning bag as a tshirt today
(rather than cotton or soft merino wool) as an experiment. It's called
a vapor barrier layer, and increases body heat by 15-20*F. It's also
supposed to modulate things like perspiration, temperature, etc. I
feel weird wearing it, but really appreciate it's added warmth. Just
thought you should know.
1:38 PM: So far, it's still weird and I make a crunchy noise under my
wool sweater. My secretary laughed at me when she saw the $1.99 on the
plastic bag that came untucked from the back. I still appreciate the
warmth and no sweats so far. I'm experimenting based on Robert Wood's
Pleasure Packing. For more on VB information Google Jack Stephenson +
VB shirt. I'll follow up with more at the end of the day. The
overwhelming feeling is that I still feel weird.
2:14 PM: Riding 15 miles to pick up my car at the repair shop. Adding
plastic grocery bags under my wool socks. I'm nervous. Let's see how
this goes ...
4:22 PM: Conclusion : it works remarkably well. Its around 35* with
sometimes a 20-25mph headwind. For my torso, I wore the bag, a thin
merino wool half-sleeved polo, and a light wind-breaker with pit and
back vents. Feet, plastic grocery bags, thin smartwool merino socks
and a pair of light puma shoes.
Plenty warm, no overheating despite repeat 90% exertion uphills. For
headwinds I felt surprisingly comfortable double-wind protection, even
better downhills.
Perspiration surprisingly regulated and I'm not thirsty!
5:28 PM: A surprise twist at the end. I am not sure is Facebook
appropriate, so I won't share the details of the lake of sweat that
poured out of the plastic shirt when I untucked it from my pants. It
was shocking, weird, interesting and gross all at the same time.
I was still exceptionally warm, wore only a few layers of clothing and
*think* I did not perspire as much as I would have normally dressed in
multiple layers of wool, nylon and sometimes down, whn not using the
VBL. Despite its wierdness factor, I will use the cheap and easy
plastic shirts and booties on future adventures when the weather falls
below 45* F.
Oh, you can use VBLs under your gloves too! Just slip on a
polyurethane or plastic glove before putting on your normal mittens/
gloves and be amazed at the extra warmth!
The Riv Family should feel free to make fun of me also. BUT, I have
the feeling that there are other quirky people here who will give this
a try ... if you do, make sure to post your experiences! :)
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