Feature

●HYDRATION VEST COMPATIBLE - Fits easily in most hydration vest, belt or pack pockets. Provides bounce-free stability and a flexible flask shoulder to prevent chafing.
●INSULATED - IsoBound Insulation keeps water cold and won’t sweat in warm temperatures.
●COLLAPSIBLE FLASK- Soft material conforms to any pocket, and shrinks as you drink to reduce movement and pack away easily when empty.
●ULTRALIGHT HYDRATION - Makes a great hydration addition or replacement for distance or trail running.
●100% BPA & PVC FREE - No weird taste, and no unnecessary or harmful chemicals.


Description

Cool water is just a sip away. An insulated version of our ultra-light UltraFlask 500 ml, the UltraFlask IT 500 ml features our new IsoBound technology. The double-wall construction and open cell foam technology create a barrier ? slowing the heat transfer from the user to the hydration. Customize your cap with two options depending on your run or vest, directly mount your bite valve or use the straw cap (which can be cut to any length).