I don't know how far you're going Pooks -- a couple of years ago, I was given two of them for Christmas. One is 50oz, the other is 70oz. I like the 70 oz better for biking -- it's hotter, and the farther we go, the more water I want. I do like the 50 oz for skiing!
That chest strap that's been mentioned is nice to have too!
Karen in Boise



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