Waterproof
Breathable Technologies£º
A
microporous polymeric film of polytetraflouroethylene (PTFE)
which when expanded has pores, which are much more smaller
than a drop of water, but larger than a molecule of water
vapor. Finished with an oleophobic layer, this expanded polymer
is still the best combination of durable waterproofness and
breathability in fabric technology available . This translates
to more moisture transmitted out of your clothing system in
an 8-hour period of high aerobic activity. Keeping you dryer
and more comfortable.
Water
Resistant Technologies
While there is still resistance to leakage under pressure,
(lower 1-20 PSI). These fabrics are better than simple DWR
finishes, but are not durably waterproof and not suited for
continuous torrential rains, but perform better than most
waterproof fabrics in higher aerobic situations due to greater
breathability. Garments with water-resistant technology are
not seam taped.
Durable
Water Repellency technologies£º
The durable water-repellent finish increases the surface tension
on the face fabric of your garmen, allowing water droplets
to bead up and roll off. While it will not withstand much
water pressure, it will help keep the shell fabric from saturating
and reduce the internal condensation, keeping you dryer and
warmer. The test for water repellency is called the Spray
Test. Results are given by the % of the fabric still beading
up. For example: 80/20, this means; 80 points (or %) after
20 washing. 80/20 is the standard for high level DWR. Enduro
DWR has raised the durability of DWR's to 80/100.
Windproof
Technologies:
Essentially wind takes heat and moisture away from the body.
What we experience is cooling. This sounds negative, but it
can also be beneficial. At times of high aerobic activity the
body will need to release more heat and moisture to cool itself.¡MMost
of what we do in dressing for outdoor activities is attempt
to balance heat / moisture retention and heat / moisture loss.
Convection¡ªair moving heat away£¬ is what we normally control
by the outer layers of a clothing system.
Conduction---moisture turning from liquid to vapor£¬ thereby
absorbing energy/heat from the body£¬ is what we try to control
by insulation and common sense.
Evaporation---contact with cold surface£¬ sitting in the smow
or holding a metal ice axe shaft£¬ is what we try to control
with moisture moving base layers .
Radiation--- accounts from a relatively small amount of heat
loss£¬ is generally controlled by the clothing system in general.
Respiration---- is beyond our control.
Seam
Tape ,a waterproof tape £º
applied
over up seams. For performance outerwear to claim maximum
protection against water, seams must be taped.
Scuff
Guards Patches of high-tenacity fabrics £º
Such
as Cordura or Ballistics cloth placed across the lower-leg
inseams of ski and mountaineering pants. Scuff guards deter
ski boots, crampon teeth, and ski edges from chewing up your
pant's inner legs.
base
layer£º
The performance-wear in contact with your skin very close contact.
Worthwhile base-layer clothing, will gently hug your body and
transport moisture away from your epidermis and into the air
or your next clothing layer. The base layer's mission is to
keep you dry and warm.
boot
loops £º
A
heavy-duty loop of nylon webbing found at the end of an integrated
(sewn-to-the-pant-leg) gaiter. Boot loops come in pairs; one
on the inseam side of the gaiter and the other on the outside
seam so that you can run a sturdy shoelace or cord through
the straps and underneath a ski or telemark boot. Purpose:
Keep the gaiter down, keep the snow out.
differential
cut£º
Found
among baffled insulated garments£¬ a differential cut means
the diameter of the lining is smaller than the diameter of
the external shell. The space between the two is for the down
or synthetic fill.
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