A hydration pack, also known as a water backpack, is a backpack with an integrated reservoir for storing and dispensing water. Hydration packs are popular among runners, hikers, and other outdoor enthusiasts because they allow them to stay hydrated without having to carry a separate water bottle.
There are many different types of hydration packs on the market, so it is important to choose one that is the right size and fit for your needs. The best hydration pack for running will be lightweight and comfortable to wear, and it will have a reservoir that is easy to fill and clean. It is also important to consider the features of the hydration pack, such as the type of valve, the number of pockets, and the presence of a waist belt.