REI Co-op Swiftland Hydro 5 is a men’s hydration running vest available in extended sizes with adjustable torso straps for a more personalized fit. The vest is designed to be comfortably snug with a compression fit that prevents sloshing as you run.
Users do report that sloshing is minimal, however, as the volume of the bladder decreases, you may need to adjust the fit mid-run. In addition to the adjustable torso straps, the Hydro 5 comes equipped with load lifters which enable you to keep the load tight and balanced.
There is plenty of storage space in this vest. It features over six exterior pockets which include a main pocket, four lower stretch-mesh harness pockets, a stretch mesh drop-in pocket on back to stow a jacket, and an internal pocket with key fob designed to hold a wallet and phone.
The Hydro 5 includes a HydraPak 1.5-liter Elite reservoir with fixed tube and a high-flow Blaster bite valve that self-seals and twits on or off to prevent leaks. Engineered with bluesign-approved ripstop nylon and breathable mesh back and straps, the Hydro 5 is built with durability and function in mind.