Hydraulics Soft Flask – 500ml

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Osprey’s Hydraulics Soft Flasks are small, lightweight and collapsible sports bottles with versatile, silicone bite valves. Ideal for runners as they’re clean, compact and easy to use. 

Osprey says:

Extend your range on the trail with this remarkably lightweight, durable and packable soft flask. Toting 500ml of mission-critical hydration, it’s lighter and more convenient than conventional water bottles and works seamlessely with the Duro® | Dyna trail running series vestpacks or handhelds. Sold separately so you can add-on or stock up your aid station.

Our Verdict

Osprey’s 2023 Hydraulics Soft Flasks are the ideal size and material for use with running vests and packs.

Not only does the flask collapse for storage, it actually collapses as you drink, preventing that annoying sloshing when your on the move.

– Reviewed by Ultralight Outdoor Gear

Features

• BPA free durable PE TPU Film

Specifications

• Weight: 32g