Undershirt/base layer
Good as a first layer in cold weather, a long-sleeved silk, cotton, wool or synthetic undershirt can be bought quite cheaply. You can also use it as a thin shirt on its own in hot weather.
Boxers/shorts/undergarments
Whichever you wear (some travellers don’t wear any!), look for fast drying fabrics and choose comfort over style. Nylon is not so good in hot weather as it doesn’t breathe and this can cause infections.
Cotton underwear is good, as are some of the new synthetics. Some travel underwear is designed to be washed in the sink in the evening and [...]
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