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Flip top whistling spout
bike commuters and more
shock-absorbing Vibram® sole construction with lower stack height provides additional stability in rugged terrain
Easy cam-lock adjustment
Capacity: 6L
HydraPak Ultraflask 42mm Filter Cap singlet Flip top whistling spoutEnhance your running experience with the UltraFlask+ Filter Cap by HydraPak. Easily attach it to any 42 mm running flasks and handhelds for quick and efficient filtration. Its traditional design with a bite valve and cap allows for easy and direct access to freshly filtered water through the high flow Blaster valve. Ideal for trail runners and endurance athletes, the UltraFlask+ Filter Cap offers a lightweight solution for staying hydrated without any
US$ 39.00
US$ 64.99
US$ 158.56
