Dynafit Flask
Best lightweight hydration solution for dedicated trail runners and mountain athletes.
This soft flask is the ultimate minimalist hydration solution for endurance athletes who prioritize efficiency over everything else. It collapses completely as you drink, eliminating sloshing and bulk, though you sacrifice the structural rigidity of a traditional hard bottle for that streamlined, packable performance.
$24.95
More Flask options
Who it's for
- Trail runners seeking a compact and quiet hydration solution
- Endurance athletes needing efficient water intake during high-intensity efforts
- Health-conscious mountain athletes prioritizing gear longevity and safety
Who should skip it
- Users who frequently mix electrolyte powders or prefer iced drinks
- Meticulous owners concerned about long-term hygiene and mold prevention
- Runners using non-Dynafit packs who require a perfectly secure fit
Performance breakdown
Portability
Collapses down to almost nothing when empty, saving precious pack space.
Refill Speed
Wide-mouth opening makes quick refills at aid stations incredibly efficient.
Vest Integration
Designed specifically to sit securely in Dynafit vests without bouncing.
Durability
Rugged construction withstands the rigors of intense trail and mountain use.
Weight Efficiency
Featherlight design ensures you carry hydration, not unnecessary gear weight.
Flow Rate
Delivers consistent hydration without requiring excessive suction effort while running.
Key Specs
Capacity
350 ml
Capacity Liters
0.35 L
Compatibility
DYNAFIT running vests
Collapsible
Yes
Reservoir Included
Yes
Product Type
Soft Flask
Insulated
No
BPA Free
No
Dishwasher Safe
No
Leak Proof
No
Know before you buy
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Ask Metto anything about the Dynafit Flask before you decide.