Ergonomically designed with Nathan's patented ExoSpine, the Nathan ExoShot Flask 12oz Water Bottle offers easy-handling hydration for long-distance athletes, serious runners, and casual hikers alike. This 12-ounce soft flask is compatible with all of Nathan's race vests to ensure a great fit when you're running full blast down your favorite trail or racing competitively. Additionally, its locking cap and bite valve provide efficient drinking with minimal effort, which is especially important on grueling runs and distance efforts.

  • Soft flask with ExoSpine
  • Locking cap & bite valve
  • Fits all Nathan race vests