Product Details
Go big. The largest of our ultra-light series, the UltraFlask Speed 600 ml holds more so you can go the distance. Its soft material allows it to fit snugly in most vest pockets and it shrinks as you drink to minimize water movement. Topped with our newest SpeedFill™ cap feature that makes aid station refills a breeze.
Fits Running Packs And Vests
Lightweight TPU
Packs Down
Speedfill Cap
Features
Soft material conforms to most hydration vests, belts or pack pockets, makes a great addition or replacement running flask.
Flexible design shrinks as you drink, reducing water movement.
Designed for fast filling - flips open for quick refills and snaps closed for a leak-proof seal.
Pair with 42mm threaded backcountry water filters including the HydraPak 42mm Filter Cap.
Easy to drink bite valve auto-seals after each sip, eliminating annoying drips.
500ml flask features an arrow flange for skinny and longer vest pockets. For wider pockets, the 600ml flask features a wide flange for a better fit.
42mm opening lets you fill the flask easily with ice and drink mixes.
