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Item # HPK000B

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Item # HPK000B

Drink to shrink.

The collapsible Softflask 500 is particularly convenient for climbers, hikers, and backpackers. It shrinks as you drink until it's the size of a stack of papers that fit in the palm of your hand. That means you can store it in your backpack regardless of how much gear you have in there. Its wide screw cap is easy to fill, and the twist lock ensures that it won't leak. The soft silicone bite valve is easy to drink out of when you're on the move.

  • Collapsible TPU construction
  • Wide screw cap with twist lock
  • Soft silicone bite valve
  • BPA and PVC free
  • Dishwasher safe

Tech Specs

Material:
TPU (thermoplastic polyurethane)
Volume:
16 oz
Recommended Use:
climbing, hiking, backpacking

Reviews & Community

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Stay Hydrated

  • Familiarity: I've put it through the wringer

I threw a carabiner on the Softflask 500 and keep it on my harness when I climb shorter multipitch routes in the heat of summer. It's lightweight and doesn't take up too much room. It packs real small when it's empty, and doen;t add any funky plastic taste to the water. I just wish it was a little bigger, so I think it's time to hop on up to the Softflask 750.

Smooshy and stashy

  • Familiarity: I've used it several times

The Hydrapak SoftFlask is exactly what it sounds like – a water bottle that is soft rather than hard. When filled with water, they expand to their full capacity. But when your water is all gone, they collapse down to the size of a crushed beer can. This makes them easy to stow in your pack or pocket instead of taking up a ton of needless room.



The main thing I like and dislike about the SoftFlask is the size. They I like that they are small, which makes them perfect for carrying around in a pocket or in your hand. But I also dislike that they are small, because they don’t carry enough water for me on a typical day-hike/trail run. This supreme mobility, however, makes them so easy to stash into a pack as the soft material conforms around whatever gear you have in there. I’ve been known to keep them in my back pocket, or even in my hand as they are totally unobtrusive. They even have loops so you can hang them from a climbing harness or a pack strap.



Once the water is gone, the flasks collapse on themselves flat as a pancake. They take up zero room, which provides space for more stuff/less weight in your pockets or man satchel.

Smooshy and stashy