20oz Soft Flask with Bite Top

By Nathan

Classic Design

Our timeless bite valve helps liquids from escaping so you can keep yourself hydrated no matter how far you go.

Simply Compatible

Your 20oz. Soft Flask with Bite top is perfectly compatible with ALL Nathan hydration vests.


  • Size: 20oz.
  • Bite valve keeps liquids from escaping
  • Works great with ALL NATHAN hydration vests
  • Easy to clean
  • Capacity: 20 oz/600 mL