The first-ever, double-wall insulated Flask with Fire & Ice technology means you've found your new favorite Flask.
- Double-walled construction keeps fluid cooler 20% longer than other insulated bottles
- Integrated reflective fabric offers 360-degree reflectivity for visibility in low-light conditions
- Race Cap offers quick bursts of fluid
- Fits all 10 oz NATHAN hydration belt SpeedFit holsters and the QuickShot Plus insulated handheld
- Dishwasher safe (top rack only)
- BPA-free with odorless and tasteless technology