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A lightweight soft flask that keeps water accessible while moving
Hydrapak says:
The SoftFlask Speed is specifically designed to be compatible with the widest range of vests and packs. Replacement or upgrade, the pinch-welded bottom makes loading into pockets a cinch. Its secure, single-handed SpeedFill™ flip top makes filling fast — both water and fuels — and the self-sealing silicone bite valve delivers sips, not drips. And all this weighs just grams.
Our Verdict
The Hydrapak SoftFlask Speed 500ml is designed for quick access on the trail, sitting neatly in vest or pack strap pockets. At around 42g, it is easy to carry and compresses as you drink, reducing movement in your pack. The bite valve gives a steady flow and seals cleanly, while the flip-top cap makes refilling simple. The soft structure works best when supported, where it stays stable and easy to grab. It is a solid option for fast hiking and long days where accessibility and low bulk are a priority.
- Reviewed by Ultralight Outdoor Gear
Features
- Soft material and an innovative pinch-welded base creates a low-profile tapered flask — designed to fit almost any vest, belt, or pack pocket.
- Easy to drink bite valve auto-seals after each sip, eliminating annoying drips.
- Designed for fast filling - flips open for quick refills and snaps closed for leakproof transport.
- 42mm opening lets you fill the flask easily with ice and drink mixes.
- Flexible design shrinks as you drink, minimizing water movement.
Specifications
- Weight: 46g
- Dimensions: 260 mm x 80 mm / 10.2 in x 3.1 in
- Capacity: 500ml
Material & Construction
- TPU, PP, Silicone, POM, 304SS
