Socks and liners. . . One pair of socks can go for days with multiple pair of liners. Better is two pair of socks with 3-4 pair of liners. Alternate the socks daily, change the liners whenever your feet start to get damp.

The liners can be cleaned and air-dry (overnight) to keep you in clean dry socks almost indefinitely.

REI Merino Wool Liner Socks
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Better is the Enemy of Good Enough.
Okay, what’s your point??