Hydrate effortlessly with this 500mL flask, designed for compatibility with vestpacks. A WingStay™ removable stabilizer prevents bounce, while a wide-mouth opening makes it easy to load ice or mix in electrolytes. A high-flow valve, easy-grip twist cap and tapered shape simplify hydration. Crafted with durable TPU and RF-welded seams, and compatible with the UltraFlask Filter Cap (sold separately).
Features:
Specifications:
| O/S | ||
|---|---|---|
| VOLUME | 31 IN 3 / 0.5 L | |
| DIMENSIONS | 10.2H X 3.5W X 2D IN. | |
| WEIGHT | 0.09 LBS. | |

