Quote Originally Posted by fishdr
I've never used a camelbak - does it make your back sweat more?

109??? It's a dry heat....

I can't do 105 because even right now (low 90's) the sun is so hot I feel like it's melting my skin off.
Anything above 90...I am sweating so much, I can't tell the difference.

And, the Camelbac... when is has ice in it... is more likely to keep you cooled off, just a bit.