Take handheld hydration to the next level of comfort and efficiency with this ergonomic soft flask hand held water bottle. The patented ExoSpine means the soft flask feels natural in your hand, even as the fluid level decreases.
Replacement bottle works great with Nathan vests, as the durable spine allows you to easily store the soft flask in front pockets. It's so comfortable, you'll probably forget that you're holding it.
12 oz / 355 mL soft flask with locking cap and bite valve keeps liquids from escaping Integrated ExoSpine™ creates superior hand feel and support for the soft flask.