Ultraflask It 500
An insulated version of our lightweight UltraFlask 500ml flask, the UltraFlask IT 500ml features our new IsoBound technology. Engineered to keep fluids at an ideal temperature 38% longer than a standard flask. The four-layer design provides users with more stability, an enhanced grip, and a no-sweat, comfortable carrying experience without sacrificing the simplicity. Preventing heat transfer from the user to the hydration, it is the ideal solution for a wide range of outdoor endurance activities.