Weighing in at just over an ounce, the HydraPak UltraFlask Speed 600 water bottle is so light you might forget you brought it—that is, until you need a quick drink during a long-distance run.
Features
Soft material confroms to most hydration vests, belts or pack pockets (not included)
Flexible design shrinks as you drink, helping to reduce water movement while you're running
Choose between 2 cap configurations depending on your run or vest—directly mount the bite valve onto the cap or insert the adjustable drink tube to create a straw cap
Included straw can be cut to any length
High-flow bite valve auto-seals after each sip, eliminating annoying drips
Speedfill™ cap flips open for quick refills at aid stations and snaps closed for a spillproof seal
Large standard 42 mm opening lets you fill the flask easily with ice and drink mixes