OMM Running Ultra Flexi Flask 350ml Bite Valve (Twin Pack)

The OMM Ultra Flexi Flask can be filled with water or powder supplements thanks to its wide neck, which makes it easier to measure out the correct volumes. The twin pack provides double the liquid for those longer runs.

The OMM Ultra Flexi Flask is of thermoplastic polyurethane construction, making it extremely flexible, light and compact for easy transport. With an impressive 350ml capacity, it compresses when drinking, has a soft bite valve to prevent spills and is non-toxic; the OMM Ultra Flexi Flask is the perfect way to stay hydrated on a run without carrying a large, cumbersome bottle.