I use an Ultimate Direction water belt. It has two 10 oz bottles, a 4 oz gel flask and a small pocket for keys and such. I love it, I don't notice the weight at all, it has a wide stretchy band that doesn't move. I used to have a hand held water bottle, but I always ended up ditching it halfway through my run. I have a Camelback, but I have to load up on the bodyglide or I get chafe marks anywhere it touches skin.

Jen L