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.
Features
- Twist locking cap with bite valve
- Bite valve features high flow domed post and blaster compression system that control the water distribution when you use it
- Max Fill design with wide flange and 3D bottom shape for more volume in shorter dimension
- Flexible design shrinks as you drink reducing the movement and easily packs away when empty
- Works great with all Nathan hydration vests, packs, and wide compression belts
- Does not feature ExoSpine™
- Capacity: 20oz/591mL
