650mL Locking Cap Flask
650mL Locking Cap Flask
Built to hit the volume sweet spot for many runs at 650mL in volume. The bottle features a locking cap so the nozzle does not leak due to pressure from the belt. Made by Hydrapak.
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Features
- New Hydrapak low profile locking cap is much easier to use than the previous version and makes the nozzle leakproof with the pressure across it that oftens happens in a belt.
- 650 mL volume hits the sweet spot for many runs.
- Compatible with Katadyn BeFree and Hydrapak filter tops.
Specs
- 650mL Volume
- 10.5"x3"x1.625" with cap on
- 44g empty with cap on
5 year warranty
Free returns in US (sale products are final sale)









06.23.24
Anna Gibson
Colorado
DESIGN PHILOSOPHY
Raide builds light, aesthetic and balanced equipment for steep terrain. We believe that the best gear isn’t dependent on any one variable, like being the lightest, but a combination of style, weight, durability, and functionality to address a certain need.
Unmentioned bonus feature: the exposed parts of the compression system are a perfect spot to carry my anti-rabid dog batton.
The flask and cap are the usual HydraPak quality with the usual HydraPak warranty. All good things on both counts. As such, I fully expect to get several years of not-so-gentle use out of them.
More importantly, I'm just glad to see that Raide and a handful of other companies are bucking a longstanding trend by standardizing on flasks larger than 500ml. Indeed these 650ml flasks work just as well in my vests as they do in the LF 2L belt and the extra capacity is greatly appreciated.
I’ve taken it this bottle on 50 mile runs and 5 mile runs and it fit the bill for both.
Best cap for any belt. Brilliant idea, whoever thought of it. Bought two (2).
Perfect bottle. Really enjoy the locking cap!