Im not trying to be ignorant or anything, but are ya freakin kiddin me dude lol. Try humping 150 stops in 98 degree weather and you think that's bad you being sweaty. You don't even know what its like to try n survive that without having a heat stroke.
that's cake... have a cooler w/ ice in it, a towellete to dip it into it from time to time to do a quick "cool down" & move on.
humidity, on the other hand, sucks ~but it's still tolerable than getting stuck or sliding around ice during this past winter
i do carry spare shirts/socks, powder, deoderant, baby wipes, though and change as needed during the summer time
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low to mid 50s the past Sat; 1/2 the terminal drivers were wearing shorts