The most comfortable handheld Flask ever! Nathan's Ergological™ shaped SpeedDraw™ Flask with Tru-Flex™ technology allows for the most natural grip possible and easy-squeeze access to fluids.
- 18 oz / 535 mL
- Weight: 3.1 oz / 87.9 g
- Fully adjustable hand strap with thumbhole enables grip-free running
- Large, expandable, zippered pocket carries phone, keys, ID and other running essentials