The 20oz soft flask features a twist locking cap that allows you to shut off the water when you stash it in a compression vest or belt!
Perfect to hold by hand on a run, easy to click the cap in place to slip into a front vest pocket or stash in your backpack or belt, gives you control of where your water or liquids go.

CAP LOCKING CONSTRUCTION 
The twist locking cap with bite valve is designed for leak proof transport, the 42mm opening sized for easy filling and ice with self-cleaning bite valve.

COMPATIBLE DESIGN 
Ideal size for hydration vest, belt, or pack pockets. The flask material is soft and conforms to any pocket for a comfortable carry experience.