I'm such a klutz, I had a hard time reaching and drinking for the bottle. I also didn't like anything on my shoulders, since I was prone to upper back knots. So I got a small joggers camelback that just goes around my waist. I love it! I also have a tendency to take alot of little sips. It holds the same as 1 large water bottle. The places I ride, I can usually refill every 20-25 miles, when I need to. If they don't have potable water (RH Phillips Winery, for instance) I'll throw an extra bottle into my rack trunk. I do want to put a cage and bottle on my bike though. An energy drink would really be nice, and I can always pull over when I need that!