Hat
Most of the time you probably won’t need a hat, but they are useful in certain situations.
Figures vary from about 7% to 75%, but whichever it is, a lot of body heat is lost through your head. For cold weather, a good, simple solution to this is to carry a lightweight, waterproof, silk,
woollen or wool mix cap/hat
(shown left), they can even be worn in bed.
For the sun, choose a hat that is light and [...]
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Tie/scarf/bandana
A wool scarf can be very effective in cold weather but can be bulky. You can always buy one wherever you are if it gets too cold.
A good substitute is something like a bandana or a sarong, or maybe a towel or just buy a thin locally bought scarf. This can also help vary your outfits as it makes a good accessory.
A cotton bandana is probably the most versatile for not only can it serve as a neck or head scarf, you can use it for a cravat/tie, a hat or headband, sun shade or sleep [...]
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The sun is very intense in the tropics and at higher elevation. For every 5000 feet (1500 meters) in altitude gain, UVB radiation increases by twenty percent.
Travellers should wear a hat with at least a three-inch brim all around, and use sunblock with a sun protection factor of at least fifteen.
Wear sunglasses with ninety-nine percent UVA/UVB protection, and protective goggles are a must for preventing snowblindness at altitude.
Heat and humidity
Unacclimated travellers run a risk of heat exhaustion or heat stroke if they try to do too much, too soon. Also, pricky heat may be a problem.
If [...]
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