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Featuring the same great hand-feel, this slosh reducing, super-efficient handheld now features insulated hydration to keep runners cooler, longer.
- 18oz / 535 mL BPA-Free Insulated Soft Flask with bite valve
- Insulated properties keep fluids cooler 38% longer than non-insulated soft flasks
- The rigid ExoSpine for superior hand feel and support for the soft flask
- Ergo-designed hand strap provides grip-free comfort, and maximizes running efficiency
- Soft flask can be easily removed from sleeve, and used in Nathan hydration vest pockets
- Breathable wicking mesh under hand position provides superior grip
- Expandable stash pocket for small items or nutrition
- Storage Capacity: 8.5 cu in/0.14 Liters
- Weight With Bottle: 3.2 oz/91 g