I actually have a large pack and I pack clothes on the perimeter of the pack, my sleeping bac in the middle, food on the top, and equipment in the outer pockets and tent, and various other "stuff" attached to the outside. In the top, I have compasses, documents and quick need stuff. My pack does weigh 55 lbs. fully loaded, so take it for what it is worth.
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A government big enough to give you everything you want,
is strong enough to take everything you have.
Thomas Jefferson