Inov-8 Ultraflask 0.5 (Soft Flask) Size:Ultra Flask 0.5 the sock boasts over 68%

the sock boasts over 68% recycled content

Super Fiber: Vectran™ (mains only) Outer High Polymer Braided Nylon Fiber

Head Size: 495cm2

The result of more than 70 years of research and development

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Inov-8 Ultraflask 0.5 (Soft Flask) Size:Ultra Flask 0.5 the sock boasts over 68%No more leaking bottles! Eliminate accidental leaks with the 500ml Ultra Flask featuring an auto sealing high flow phaser bite valve and a twist locking cap which shuts off all flow to the valve, allowing you to stash it in your waist pack without the worry of annoying leaks. A large 42mm cap entry ensures quick and easily refilling at race aid stations, while the soft and flexible design ensures it shrinks down as you drink, reducing water movement