If I'm planning to be out more than 45 minutes, I wear a hydration belt. Even if I end up not needing it, I like knowing I have it. Besides, it gives me a convenient place to stash my ID, my MPs player, my cell phone & some cash.

If you get one that fits you well, and is well balanced in the small of your back, you'll hardly notice it's there. If you get one that *doesn't* fit your shape well, it will probably drive you nuts.

Susan