With the SOFT FLASK 500ML water bottle from The North Face, you can go training and stay hydrated without feeling fussy.
With a capacity of 500 ml, this water bottle is flexible and reduces in size according to the level of liquid remaining inside. This avoids any internal movement, which can be irritating during a race. This model features a flexible, fast-flow, self-closing bite valve for added convenience.
Note that this flask is compatible with most hydration bags and belts designed for running and trail running.