Whether we're rolling on dirt or gravel, we're snapping into the USWE Rush 8L Hydration Pack. Equipped with USWE's NDM tech, this vest won't bounce or shift throughout our ride thanks to the side stretch panels letting us cinch in a snug fit that still lets our lungs expand on grit-testing climbs, while the single front buckle is one-hand operational for on-off ease. Plus, the included bladder simplifies taking frequent quick sips to keep us hydrated on the trail.