Even half full, the Intensity vest sloshes very little, doesn't bounce at all, doesn't interfere with the curve of my spine or the rotation of my pelvis, and just generally rides MUCH lighter than one liter in a waist pack, even a three-bottle one. It's only been recently that I've been filling it all the way (and even refilling it on the longest runs
), but I use it in preference to my Amphipod belt even on 8-milers. Plus, it gives you a place to carry phone, ID, Epi-Pen, extra Blister Block, gels, cap and gloves if you take them off, ... a foldable water bowl and extra water for the dogs ... It's probably the best piece of sports equipment I've ever bought in my life.
Last edited by OakLeaf; 04-28-2010 at 07:09 AM.
Speed comes from what you put behind you. - Judi Ketteler