For a week long trip in warm weather I would take one extra pair of jockey shorts (yes cotton) and 2 spare cotton tee shirts - some "no-rinse body bath" and a small deodorant stick.
I started camping decades ago in all cotton including levis and I have returned to that for warm weather in Oregon. Cold weather is a dofferent story.
Jim
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These are my own opinions based on wisdom earned through many wrong decisions. Your mileage may vary.