HydraPak SoftFlask Speed 500 ml Water Bottle - 17 fl. oz.
This lightweight soft flask from HydraPak is designed to fit into a wide range of vests and packs. The self-sealing bite valve holds off leaks.



- Soft material and an innovative pinch-welded base create a low-profile tapered flask; it's designed to fit almost any vest, belt or pack pocket
- High-flow, easy-to-drink bite valve auto-seals after each sip, eliminating annoying drips
- SpeedFill™ cap is designed for fast filling; it flips open for quick refills and snaps closed for leakproof transport
- Large, 42 mm opening lets you fill the flask easily with ice and drink mixes
- Compressible, flexible design shrinks as you drink, minimizing water movement
Imported.
View all HydraPak Running Water Bottles| Best Use | Running |
|---|---|
| Liquid Capacity (L) | 0.5 liters |
| Liquid Capacity (fl. oz.) | 17 fluid ounces |
| Dimensions | 3.1 x 10.2 inches |
| Fits In Cup Holder | Yes |
| Water Bottle Material | Plastic |
| Material(s) | TPU; polypropylene; silicone; POM; 304SS |
| BPA Free | Yes |
| Bottle Opening | Medium |
| Cap Type | Push/Pull Flip Top |
| Collapsible | Yes |
| Weight | 1.6 ounces |
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Lightweight, might spill
I bought these water bottles to fit into my lululemon running vest and I've taken them on a few runs now. They do indeed fit into the vest. They also fit easily into other pockets and bags for other activities. So they do what they are supposed to- hold water and take up minimal space and weight. Just beware that the bite tops are quite delicate. More than once (during a single run-which might say more about me and my ability to learn) the bite valves have come off the cap and doused me in electrolyte water. Nothing terrible since I'm already sweating, but a pain to try to put them back on. I suppose I need to learn to bite and push down for a drink instead of bite and pull. If I was concerned about my pace at all, I'd be upset about having to stop to fix it, but I'm usually looking for a reason to take a break. Keep in mind as you consider your options. Also, they did leave blue marks on my vest, which is a lighter color. These washed out. I don't mind since I'm more of a function over form kinda person anyways, but I could see someone worried about discoloring their gear.
Great bottle for your vest!
This fit perfect in my Nathan Pinnacle pro 12L vest! I used it during my marathon to refill at aid stations instead of having to carry the heavy bladder and it was absolutely perfect! I added the flask straw, which I highly recommend as well!
Great size for my running vest.
Using in a running vest and fits perfectly. I love that you don't have to take it out to drink water. Just use bite valve and drink.

