The Patagonia Fore Runner Vest 10L is the most backpack-like hydration pack for running that we tested, which makes it appealing for those who like to carry a lot of stuff. It is also comfortable and adjustable. However, it has the fewest amount of accessible pockets of any pack we tested, ensuring that you will have to take the pack off if you want to gain access to the things you need. Additionally, its bladder and hose hydration system is poorly designed compared to the competition. This pack is probably a better fit for those who enjoy really long hikes rather than ultra racers.
Companies are constantly releasing new colorways of old favorites, and Patagonia has done just that with the Fore Runner. The neon version that we tested may no longer be available, but the technical specs on this hydration pack remain constant.