HydraPak Ultraflask 42mm Filter Cap singlet shock-absorbing Vibram® sole construction with

shock-absorbing Vibram® sole construction with lower stack height provides additional stability in rugged terrain

bike commuters and more

Flip top whistling spout

and any operational warnings such as overload or overheating

or connect to a USB power source via the included 30cm Type-C to Type-A cable

HydraPak Ultraflask 42mm Filter Cap singlet shock-absorbing Vibram® sole construction withEnhance 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