Our game changing soft flask now holds even more fluid! at 18 ounces, the new features an integrated hand strap for ideal running efficiency, and a rigid exospine to maximize comfort as the fluid level decreases.
- 18 oz/532Ml BPA free soft Flask with bite valve to keep liquids from escaping
- The rigid exospine creates superior hand feel and support for the soft Flask
- Ergo designed hand strap provides grip free comfort, maximum running efficiency
- Hand strap is removable, allowing soft Flask to be used in most Nathan hydration vest pockets
- Removable neoprene sleeve offers insulation and a tactical, sweat free grip surface