Running hydration systems

Plan around duration, weather, effort and reliable places to refill. One fixed amount will not suit every run. Carry an appropriate reserve and check supplies before a longer route rather than relying on unknown water sources.

Compare its dimensions with the intended front pocket. Neck and cap can also be too wide or too tall. A filled flask should remain secure and accessible for drinking without pulling the whole vest out of position.

Read the supplied contents. Some include flasks, while others are ready for containers bought separately. Also check whether your preferred system is designed for a back compartment or the front pockets.

Empty and rinse it after running as instructed. Dismantle only the permitted parts and let reservoir, hose and valve dry completely. Sweet drinks need particularly thorough cleaning; avoid putting the system away closed while it is still damp.