HydraPak SkyFlask Speed

Hydration on mid-length runs can be challenging. Too long to go without H₂O, but too short to warrant a full-on reservoir. What’s that you say, just hold a water bottle? But the sloshing alone will have you looking for an alternative within a mile. Let us propose the perfect balance of handheld convenience and anti-slosh properties from HydraPak: the SkyFlask. This semi-structured soft flask, designed for hand carry, features an adjustable hand strap and a shrink-as-you-drink design to collapse as you drink. The flexible design keeps the weight down and is easily stashed in a pocket when empty. Stay hydrated on the trail with the HydraPak SkyFlask.

• High-flow bite valve simplifies hydration.
• Shrink-as-you-drink design makes this flask easy to store in a pocket when empty.
• Large opening allows for easy addition of drink mixes or ice cubes.
• Speed 350ml features a flip-top cap to reduce time at aid stations.

Update 2026: The Skyflask Speed flasks feature a new printed design, but otherwise remain unchanged.