I'm one of those that can't stand having something around my waist while running. I wear a small women's specific Camelbak backpack on long runs. BF doesn't like the idea of running with a Camelbak, so after much research and hemming and hawing (I'm a much more impulsive gear buyer than he is), we ended up with an Amphipod belt, one of the ones that have modular bottles like Fuelbelts. The bottles seemed easier to remove and replace on the Amphipod than on the Fuelbelt. I haven't used it yet (I am curious to try it but still don't think I'll be able to get used to having something on my waist), but he likes it a lot.