Nathan's new soft flask with integrated hand strap created ideal running efficiency! The grip-free, design features a support spine to maximize comfort as the water level decreases.
- 12 oz / 355ml BPA-free soft flask with locking cap and bite valve keeps liquids from escaping.
- Integrated spine creates superior hand feel and support for the soft flask
- Ergo-designed hand strap provides grip-free comfort, and maximizes 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 tactile, sweat-free grip surface.
- Expandable stash pocket for nutrition and other small items.