Hydra Pak pioneered the soft flask category & continue to evolve it with the introduction of their new Ultra Flask series. Ultralight,
...The new Hydraulics reservoir has a wider/shallower profile holding the water closer to the users back, reducing offset weight
...The new Hydraulics reservoir has a wider/shallower profile holding the water closer to the users back, reducing offset weight
...The new Hydraulics reservoir has a wider/shallower profile holding the water closer to the users back, reducing offset weight
...The new Hydraulics reservoir has a wider/shallower profile holding the water closer to the users back, reducing offset weight
...Hydra Pak has enhanced the design of their Velocity 1.5L hydration reservoir to deliver 20% more flow. Streamlined & stable, it will sit comfortably in your running pack or vest. Features include a wide opening for fast filling, a leak-proof Slide-Seal top that closes tight & a high flow Blaster bite valve that seal-seals after every sip.