Here in hotter than hello California I like to freeze a bottle of grape gatoraide the night before, by the time I need it on the trail it's perfect! My favorite of all time canned drinks is Adrenaline Rush -tastes great, doesn't drop you like a rock. I've tried almost all of them ( my husband likes to buy them and try them out on me.) The rest taste like barf to me! Anyway just my 2 cents.