Description

Price: $24.00 - $11.83
(as of Jan 21, 2026 17:58:54 UTC – Details)

From the manufacturer

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Price

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$17.60$17.60 $52.00$52.00
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Purpose
Holds nutrition and energy gels Hydration for trail & road runners Hydration for trail & road runners Hydration for trail & road runners Filtration for trail & road runners Hydration for trail & road runners

Benefits
Fits into most packs, vests, belts, pockets Twist lock cap, adjustable hand strap Twist lock cap, adjustable hand strap Fits most running vests and packs Fits most running vests and packs Fits run belts and lean vest pockets.

Capacity
150 ml / 250 ml 350 ml / 500 ml 500 ml 500 ml / 600 ml 500 ml 500 ml

Weight
21 g / 24 g 44 g / 57 g 59 g / 68 g 41 g / 46 g 65 g 32 g

Cap Technology
Flip cap with soft gel nozzle SpeedFill Cap (350ml) / Twist Lock Cap (500ml) SpeedFill Cap (300ml) / Twist Lock Cap (500ml) SpeedFill Cap, Straw Accessory Hallow Fiber Filtration Locking cap easily opens and closes with a touch of a thumb.

HYDRATION VEST COMPATIBLE: Fits easily in most hydration vests, belts or pack pockets. Provides bounce-free stability and a flexible flask shoulder to prevent chafing.
COLLAPSIBLE FLASK: Soft material conforms to any pocket, and shrinks as you drink to reduce movement and pack away easily when empty.
PERFECT FOR AID STATIONS: UltraFlasks are equipped with our SpeedFill Cap designed for quick and easy refilling at aid stations. A side tab pops open the cap in one motion and snaps shut with a click.
CUSTOMIZABLE CAP: Built for versatility, the UltraFlask comes with a 42mm customizable cap. Choose between straw or bite valve.
BEYOND LIFETIME WARRANTY: If you experience any issue, we’ll repair or replace the item for free. Whatever it takes to keep your adventure going.