I now use a Camelbak for every ride - I prefer it because I don't have to grab for a bottle, so I take sips more often. I have a "Dream" (70 oz w/ compartments) for trail rides and a "Blue Wave" (small 50 oz. $15 at Bass Pro Shop) for road rides. It has a nice cool feel on your back when you fill it with ice, or for hot days, I freeze my water in the blatter and it stays nice and cool for hours.