Dynafit Flask
Unless your local trails have water fountains every mile, you'll need to bring water on your run to stave off dehydration. The Dynafit Flask shrinks as you sip, so it gets more portable as you go and minimizes the sloshing you get with regular water bottles. BPA/PVC free and integrates perfectly with Dynafit running packs and belts. It's the small things, folks.
| Size | Weight |
| 250 mL (8.4oz) | 21g (0.7oz) |
| 300 mL (10.1oz) | 23g (0.8oz) |
| 500 mL (16.9oz) | 26g (0.9oz) |
| Specifications | |
|---|---|
| Dimensions | 14cm x 9cm [300 mL] 19cmm x 7.5/6.5cm [500 mL] |
|
Weight |
33g [300 mL] 37g [500 mL] |
| Volume | 300 mL 500 mL |
| Specs Verified | Yes |
| Design | |
|
|
TPU, PP, Silicone, POM |
| SkyRun Says | |
| Usage | Staying hydrated on the trail |
| Notes | More square bottom edge on the 300 mL |
| Bottom Line | Tapered flask fits easy in Dynafit vests |
| Compare to other Soft Flasks | |
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Questions & Reviews
8/19/2026
Would these flasks work for the Dynafit vert 3 vest? I currently have salomon flasks that are too long they fall out or ultra direction flasks that are too wide and don't fit in.
8/19/2026
Hey Michelle,
We can't confirm whether or not they will fit since we don't have that exact vest in stock. However, the Dynafit flasks haven't changed much over the years, so I would guess that they are going to be the best fit!
We can't confirm whether or not they will fit since we don't have that exact vest in stock. However, the Dynafit flasks haven't changed much over the years, so I would guess that they are going to be the best fit!
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