Quote:
Originally Posted by Cutty72
I have a mesh JR jacket.
Wearing that is cooler than wearing just a tshirt.
my .02
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An in all seriousness, there's something to that. The more skin you have exposed to the sun on a hot day, the more you're going to dehydrate (not to mention, sunburn). Your body is actually going to stay COOLER in a jacket than in, let's say, a t-shirt and some body armour.
It seems to be OTB made a really excellent post about this (with some comparisons to nomads in the desert) some time ago... maybe he can chime in with some wisdom here.