To a certain extent, soft shell
clothing works on the principle that conventional waterproof / breathable
fabrics do not actually keep you dry and comfortable under all conditions
- despite high levels of breathability, it is still quite easy to
overwhelm the breathability of the best waterproof / breathable
fabrics and end up feeling cold and wet. Even though soft shell clothing
is not totally waterproof, in reality it is extremely weatherproof,
providing excellent protection from wind, cold, snow and light rain,
especially when active. Most soft shell garments consist of a tightly
woven microfiber outer with a Durable Water Resistant finish (which
provides the wind and weather protection), and a directional wicking/insulation
lining (which provides warmth and moisture management).
How
dose a Soft Shell perform ?
- Soft Shells are made from soft, flexible,
and very comfortable materials - they are garments you can wear
all day, not only rainy conditions.
- Soft shells tend to be more comfortable over
a wider spectrum of weather conditions, this means less time is
needed for adding or removing layers to stay comfortable, especially
in changeable conditions.
- Extermly breathable: (higher than conventional
waterproof / breathable barriers) - many systems are totally condensation
free.
- With a Soft Shells insulation and wicking
properties in a single garment means fewer separate clothing layers
are needed to provide full weather protection.
- Any moisture that gets into a soft shell
clothing system can quickly get out again, speeding drying times.
Waterproof garments are just as good at stopping water getting
out of a garment as in.
- Some lightweight soft shells are extremely
versatile, ensuring that fewer garments will enable you to cope
with a wider range of activities or weather conditions (e.g. the
Marmot Driclime Windshirt will function as a base layer, mid layer
or outer layer).
- Soft shell garments are easier to wash (washing
works via the action of water passing through a fabric and lifting
out the dirt - waterproof garments, of course, do not allow this
to happen).
- Soft shell garments rely on the inherent
properties of the fabrics of which they are made, not 'flimsy'
membranes or coatings that are bonded or applied to them, and
are therefore offer a much longer service life than conventional
waterproofs.
- Soft shell garments are immune to puncture.
This also means that repairs or alterations do not need seam sealing.
Any
drawbacks ?
- They are not 100% waterproof, and as such
not so good for extremely wet conditions.
- Many soft shell systems rely on body heat to drive
out moisture, which is fine when active, but less effective when
stationary and not generating as much body heat.
- Wet clothing can lead to very rapid cooling (water
conducts heat away from the body 27 times more quickly than air).
It is therefore prudent to have extra warm layers available for
periods of inactivity (rest stops, belaying, etc.).
- As the most weatherproof soft shell garments have
relatively thick insulated linings (they need these to work),
they are therefore not suitable for hot weather conditions.
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