Collapsible Soft Flask Water Bottle (500ml/17oz) 2-Pack for Hydration Vests and Running Packs, Malibu Blue

Part of our ultra-light series, the 500 ml UltraFlask is incredibly lightweight, weighing in at just over an ounce. This hydration solution is optimal for runners of all kinds, with its soft material that conforms to most pockets and shrinks as you drink to minimize water movement. Topped with our SpeedFill cap, the UltraFlask is ready for quick aid station refills, whether you choose to use it with or without the included drink tube.

The UltraFlask package includes the 500ml flask, a SpeedFill Cap, a Drink Tube, and a Bite Valve, along with basic care and use instructions. With a capacity of 500 mL or 17 fl oz, and dimensions of 186 mm x 58 mm or 7.3 in x 2.3 in, this flask is made of TPU, PP, Silicone, and POM materials.

The UltraFlask is designed to be hydration vest compatible, fitting easily in most vests, belts, or pack pockets. Its bounce-free stability and flexible flask shoulder prevent chafing, ensuring a comfortable experience during your adventures.

The collapsible nature of the UltraFlask is a true asset. Its soft material conforms to any pocket, and the flask shrinks as you drink, reducing movement and allowing for easy packing when empty.

One of the standout features of the UltraFlask is its compatibility with aid stations. Equipped with our SpeedFill Cap, the flask can be quickly and easily refilled, thanks to a side tab that pops open the cap in one motion and snaps shut with a click.

The UltraFlask's versatility extends to the customizable cap, which comes in a 42mm size. Users can choose between a straw or a bite valve, tailoring the hydration experience to their preferences.

Backing the UltraFlask is our Beyond Lifetime Warranty. If you experience any issues with the product, we'll repair or replace it for free, ensuring that your adventures can continue uninterrupted.

In summary, the UltraFlask 500ml is a lightweight, collapsible, and versatile hydration solution, designed to provide optimal hydration for runners of all types. With its aid station-friendly design, customizable cap, and lifetime warranty, the UltraFlask is the perfect companion for your active lifestyle.

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