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Naked's 500ml soft flasks (Made by Hydrapak) give you even more world class performance out of your hydration system. Designed to maximize the ergonomics in our running vests, the low profile flask with 28mm cap and high flow bite valve shrinks as you consume your liquids reducing it’s mass and volume. Weighing a scant 28g it is the perfect companion for all ultralight Naked products.

Run with confidence knowing our flasks come with Hydrapak’s famous Beyond Lifetime Guarantee.
*vest shown in picture not included 

Naked® Running Flask 500ml

  • We strive to provide our customers with the highest quality products and best possible customer care. If you are not completely satisfied with your purchase or wish to exchange please follow the guidelines below.

    • Items purchased at may be returned or exchanged up to 30 days after the original purchase date for a full refund.

    • For safety and health reasons all items must be brand new, unused condition, with the original packaging and all tags intact. Soft flask bite valves must have protective shrink wrap still intact. If any of these items are returned in an unacceptable condition for refund, refunds will not be honored, and the item will not be returned.

    • Refunds may take between 5-7 business days to process once an item has been delivered to our warehouse.

    Items purchased anywhere except must be returned to the original place of purchase.

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