ISOBOUND INSULATED FLASK
The UltraFlask IT 500ml features our new IsoBound™ insulation technology that keeps water cold and won't sweat in warm temperatures. Engineered to keep fluids at an ideal temperature 38% longer than a standard flask. After all, cold water is more refreshing.
Prevents heat transfer from the user to the hydration, it is the ideal solution for a wide range of outdoor endurance activities
Four-layer design provides users with more structure an enhanced grip, and a no-sweat, comfortable carrying experience
Includes a bite valve cap and an adjustable drink tube cap
Sign up and subscribe for exclusive deals and more on our Community initiatives