Undoubtedly you will come to believe this only by experience.

Do not carry a coat. This is another preconception of civilization,
exceedingly difficult to get rid of. You will never wear it while
packing. In a rain you will find that it wets through so promptly as to
be of little use; or, if waterproof, the inside condensation will more
than equal the rain-water. In camp you will discard it because it will
impede the swing of your arms. The end of that coat will be a brief
half-hour after supper, and a makeshift roll to serve as a pillow
during the night. And for these a sweater is better in every way.

In fact, if you feel you must possess another outside garment, let it
be an extra sweater. You can sleep in it, use it when your day garment
is soaked, or even tie things in it as in a bag. It is not necessary,
however.

One good shirt is enough. When you wash it, substitute the sweater
until it dries. In fact, by keeping the sweater always in your
waterproof bag, you possess a dry garment to change into. Two
handkerchiefs are enough. One should be of silk, for neck, head, or--in
case of cramps or intense cold--the _stomach_; the other of
coloured cotton for the pocket. Both can be quickly washed, and dried
_en route_. Three pairs of heavy wool socks will be enough--one
for wear, one for night, and one for extra. A second pair of drawers
supplements the sweater when a temporary day change is desirable. Heavy
kersey "driver's" trousers are the best. They are cheap, dry very
quickly, and are not easily "picked out" by the brush.

The best blanket is that made by the Hudson's Bay Company for its
servants--a "three-point" for summer is heavy enough. The next best is