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    On a mission to get more people to enjoy the outdoors© 2026
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    Brand: HydraPak

    Category: Running Water Bottles & Flasks

    Recommended by Jeff Garmire, Athlete — Montana

    The UltraFlask™ Speed 500ml is a versatile and lightweight hydration solution designed for active individuals. Its innovative design ensures a secure fit in your gear while providing quick access to hydration during your most demanding activities. 1. Made from lightweight TPU material, ensuring durability without adding bulk. 2. Features a wider form for enhanced stability and easy handling during use. 3. Equipped with a 3D welded bottom for added durability and a secure base. 4. Includes the SpeedFill™ Cap, allowing for rapid refills on-the-go. 5. Compact design that easily fits into most running packs and vest pockets. 6. Soft and pliable construction enables it to pack down for convenient storage. 7. Holds up to 500ml (17oz) of liquid, perfect for extended outdoor activities. The UltraFlask™ Speed 500ml is ideal for trail runners, hikers, and outdoor enthusiasts seeking a reliable hydration solution. It performs best in active environments, such as during races or long-distance training sessions. Designed for users of all skill levels, this flask excels in scenarios where quick access to water is essential, making it a must-have for summer adventures or high-intensity workouts.

    Price: $17.6 - $22

    Expert Review

    So many flasks, so much water!

    Recommended by Jeff Garmire

    Frequently asked questions

    What does Jeff Garmire say about the UltraFlask™ Speed 500ml?

    So many flasks, so much water!

    Why does Jeff Garmire recommend HydraPak?

    Jeff Garmire recommends the HydraPak UltraFlask™ Speed 500ml for running water bottles & flasks. So many flasks, so much water!

    Is the UltraFlask™ Speed 500ml a good running water bottles & flask?

    Yes — Jeff Garmire recommends the UltraFlask™ Speed 500ml by HydraPak as their running water bottles & flasks pick. So many flasks, so much water!

    More from Jeff Garmire's Cocodona 250

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    • Janji M's 7" AFO Middle Short Ultra
    • Janji M's Trekker Snappy Shirt
    • Carbs Fuel Original 50g Energy Gel
    Rendezvu
    UltraFlask™ Speed 500ml by HydraPak — recommended by Jeff Garmire
    Nutrition & Hydration

    UltraFlask™ Speed 500ml

    Jeff Garmire
    Jeff GarmireRecommended in “Cocodona 250”
    So many flasks, so much water!
    Purchasing through this link directly supports Jeff
    Nutrition & Hydration

    UltraFlask™ Speed 500ml

    Jeff Garmire
    Jeff GarmireRecommended in “Cocodona 250”
    So many flasks, so much water!
    Purchasing through this link directly supports Jeff
    UltraFlask™ Speed 500ml by HydraPak — recommended by Jeff Garmire

    This product is for…

    Trail and ultrarunners who carry water up front in a vest and need flasks that stay put and refill quickly. Also suits backcountry users who pair them with a filter cap for lightweight water management.

    Worth noting…

    The Speedfill cap can come undone when stored inside a pack without a filter cap — worth monitoring. Works with filter tops for backcountry trips.
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