Nathan Switchblade (710 ml) 
Customize your hydration with two movable 355 ml SpeedShot Flasks on this race-ready, bounce-free belt.
Features & Benefits
- Two 355 ml SpeedShot Flasks with new embedded hand grip inserts.
- Movable holsters allow you to position the ideal flask locations for your own personalized, one-handed access to hydration
- Movable zip pocket for running essentials, compatible with iPhone 8 Plus
- Race-ready features include gel loops, gel trash stash pocket