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A chat on subreddit /r/NoStupidQuestions
human
Explain this merino wool connection?
gpt
Wool is naturally repellent of dirt, oil, and odor. It's also moisture wicking. Wool garments can be worn multiple times between washes without getting crusty/stinky like cotton or polyester. Pretty common with socks, I usually wear mine 3-4 times for my 100% wool pairs. My &lt;30% wool blend pairs I wear twice.

I've never seen this practice applied to underwear though. That's still nasty.