The wide 42mm cap with a high-flow valve makes it even easier to refill the flask, drink quickly on the move and add ice cubes to keep cool.
COMFORT
The soft, flexible flask shapes to fit your pocket for extra comfort and shrinks as you drink to minimize water bounce.
HIGH-FLOW VALVE
The intuitive high-flow valve makes drinking easier, so you can stay hydrated however fast you’re running or tired you are.