|
|
Clothing
The choice of clothing used was made in conjunction with Starpole
in Brussels and Kariboe in Leuven. The outer jacket and the polar
fleece were made by the English company, Berghaus. The trousers were
the subject of a specific study led by French manufacturer Francital.
They included a layer of insulated synthetic wadding of 80 g/m2 and
are sufficiently large as well as being attached to shoes by Velcro,
to enable good air circulation along the whole leg; but its uniqueness
comes from the use of MP+, a recently developed membrane which is
made up of polyurethane containing high performance hydrophilic molecules.
Modern synthetic fibres allow the production of much lighter and more
efficient garments than those used at the beginning of the century
or even those which came out in the 1960s.
The basic principle for polar clothing is the "multi-layer".
"When it is cold," explained Alain Hubert on his return from the North
Pole, "you have to wear appropriate clothing, that much is obvious.
It is also preferable not to sweat and to keep out of the wind as
much as possible, because in conjunction with dampness, the wind is
a major cooling factor. The best insulator is dry, still air. So what
is the best way to dress for the cold? The basic principle is to create
as many layers of clothes as possible and to wear a windcheater on
top of everything. What you need to do is trap a maximum amount of
air in the thickness of the down or the synthetic fibres used for
underwear and polar fleece."
- Protective clothing against snow and wind. This is made up of
two layers of fabric enclosing a Gore-tex or microporous membrane.
The way this membrane functions is based on satisfying the following
double requirement: on the one hand, allowing perspiration to
pass outwards through the garment whilst preventing dampness and
wet from soaking into the fabric.
- Insulating clothing (under-garments). The most efficient insulating
garments are made using synthetic polyester fibres (most often
with 50 to 80% recycled material) of "capilène"
type for the under-garments and "polartec" type for
the second layer of clothing. The aim of this type of clothing
is to produce a fabric whose wrong and right sides have different
properties so that the usage of the fabric is as efficient as
possible. Perspiration has, in fact, to be drawn outside of the
fabric; there it either evaporates, or it goes into the upper
layer. Body heat acts as a catalyst, pushing dampness far away
from the body towards cooler, drier air. The type of fibres used
in polar under-garments thus maintains insulation against dampness
and dries quickly.
|