When you buy through our links, we may earn a commission. Learn more› By Jenni Gritters A hydration pack—that is, a backpack with a built-in water reservoir—makes it easier to stay hydrated ...

Wearing a hydration pack–usually a vest or small backpack with holsters for water bottles, a large reservoir, or both–ensures ...

Whether you’re training for a marathon, tackling your first ultra, or heading for a day out on the trails, a hydration pack can help you carry all the essentials you need in one place.

The Chinese brand will be the official hydration pack supplier for all UTMB World Series events. Launched in 2011, Aonijie has made a name for itself in the Asian market with trail running ...