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| Happy dog that loves to ride the bike. |
A backpack is, in its simplest form, a cloth sack
carried on one's back and secured with two straps
that go over the shoulders, but there can be exceptions.
There are many ways to carry backpacks. One way
is to carry it in one hand (like a briefcase). You
can also use a backpack to hold water and other
materials.
Backpacks are often preferred to handbags for carrying
heavy loads, because the shoulders are better suited
for bearing heavy weights for long periods of time
than the hands. Large backpacks, used to carry loads
over 10 kg, usually offload the largest part (up
to about 90%) of their weight onto padded hip belts,
leaving the shoulder straps mainly for stabilising
the load. This improves the potential to carry heavy
loads, as the hips are stronger than the shoulders,
and also increases agility and balance, since the
load rides nearer the person's own center of mas... |
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