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FITLY Soft Flask - 5 oz (150 ml)- Shrink As You Drink Pocket Soft Water Bottle for Hydration Pack/Running Vest- Folding Water Bottle for Running, Hiking, Cycling - Ski Water Bottles (FLASK150)

  • Based on 2,029 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Jun 6
Order within 4 hours and 26 minutes
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Size: 5oz / 150ml


Color: Black


Features

  • HYDRATION ON THE MOVE: Our collapsible running soft flask is a compact and eco-friendly way to stay hydrated on the move! The soft water bottle is the perfect hydration tool for active individuals. Our soft water bottles for runners shrink as you drink, taking up minimal space and wont slosh around, making it perfect for running, hiking, skiing or any rigorous activity.
  • SHRINKS AS YOU DRINK: Our running vest water bottle is uniquely designed to shrink as you drink. This ensures the water doesnt slosh around, bounce or rattle. The flexible design of our hydration flask shapes to your hand & body, meaning the soft flask is never unwieldy. Our flexible running flask features an intelligent bite valve & leak-resistant mouthpiece.
  • STAY LIGHT ON YOUR FEET: FITLYs collapsible flask is purposely lightweight ensuring your light on your feet and not weighted down by unnecessary bulk. At FITLY, reusability is deeply important to us, and our water bladder is no exception. Enjoy limitless use from our portable soft water bottle for running vest that is 100% BPA & PVC-free.
  • HYDRATION ON THE MOVE: Our soft flask is specially crafted for vigorous activities such as running, hiking, cycling and climbing. The perfect sporting companion, take it everywhere with you! Our soft water bottle can be folded and tucked into your pocket or bag. Our soft flask water bottle comes in 5 size variations and are freezable so they can double as an ice pack.
  • DIRECTIONS FOR USE: We recommend rinsing the flask thoroughly before first use. If you experience taste mix 12 a teaspoon of BAKING SODA with water, shake and rinse. Users have also found the following to be useful: Fill with MILK, shake, and rinse. Add drops of lemon. Let an orange peel or tea bag set in the flask for a couple of hours. To hydrate, simply softly bite the mouthpiece and press the soft flask and enjoy! The harder you press, the faster the liquid will exit.

Brand: FITLY


Material: TPU


Color: Black


Capacity: 150 Milliliters


Special Feature: Folding,Lightweight


Brand: FITLY


Material: TPU


Color: Black


Capacity: 150 Milliliters


Special Feature: Folding,Lightweight


Age Range (Description): Any Age Group


Product Dimensions: 2.76"W x 5.51"H


Product Care Instructions: Hand Wash Only


Model Name: F1B


Recommended Uses For Product: Cycling, Climbing, Running


Number of Items: 1


Theme: Sport


Reusability: Reusable


Shape: Round


Sport: Cycling, Climbing, Running, Hiking


Unit Count: 5.0 Fl Oz


Item Weight: 0.704 ounces


Manufacturer: FITLY


Country of Origin: China


Item model number: F1B


Number of pieces: 1


Batteries required: No


Included Components: F1B


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jun 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Love this - perfect size
Size: 8.5oz / 250ml Color: Black
This fits perfectly in the pocket of my running shorts and leggings. It's great for shorter runs when you just need a little water!
Reviewed in the United States on December 21, 2023 by Beth

  • Works very well, just be sure to rinse it out before using
Size: 13.5oz / 400ml Color: Blue
The bottle doesn’t leak at all during my long runs, but it tasted a little plasticky the first time. After I soaked it in soapy water, the taste went away. Would recommend
Reviewed in the United States on December 17, 2023 by daniel na

  • Perfect size!
Size: 5oz / 150ml Color: Blue
I use inhalers that make my mouth really dry, so having a very small amount of water in my pocket during a run is essential. This tiny little ‘flask’ is great! My only concern is that it can be tough to get the lid open at times, and it seems like putting a lot of pressure on the top of the flask while trying to turn the lid is going to rip the material and cause a leak. So far that hasn’t happened, but it does bother me. There is t a good place to grab while turning the lid, other than the material of the flask itself. So, while I love this container and how small and portable it is, I am worried that it won’t survive very long. So far, so good, however. I’m a good 20 runs in with this thing and have had zero problems with leaks. ... show more
Reviewed in the United States on April 5, 2020 by Living_Lime_Green

  • Love, love, love this!
Size: 12oz / 350ml Color: Blue
This water... bag? bottle?... made a major difference for me when it comes to exercising. I can keep it in the pocket of my yoga pants and shorts when exercising, and it fits perfectly. Taking a drink is quick and easy, and I haven't had any spills at all so far. The only thing that makes it difficult to use is filling it up with water - you have to grip it around the neck, which is very narrow, and make sure you have a good hold on it before pouring water into it. Even so, I'm still giving it 5 stars! Don't know how I could have survived this awful heat lately without it! ... show more
Reviewed in the United States on August 4, 2023 by Mallory Kate Barlow

  • Very handy water bottle when on the go, but strong plasticy smell
Size: 5oz / 150ml Color: Blue
I bought this water bottle to use when I go skiing. It's a perfect size that fits in my pocket without bulging out and it doesn't get in the way. However, there is a strong plastic smell that doesn't seem to go away no matter how much I try to clean it.
Reviewed in the United States on August 18, 2023 by Alvin

  • Stop searching...best bottle for short runs!!!
Size: 5oz / 150ml Color: Blue
I have been searching for a bottle to carry with me on short runs for a loooong time. I don’t like to carry things in my hand so my only option seemed to be the belts which carry the bottles. I have one that I love for long runs which has a small bottle on each side of the belt and one I recently purchased which only has one bottle carrier. But still it felt like someone needed to design something better. Well...someone did!!! This small bottle fits into my side pocket and I don’t even notice it while running. There is no fiddling with caps or pushing or pulling....it took me a minute to realize you just squeeze the tip with your teeth and just like that the water comes out. When I read the reviews I thought I would not like the squeezing part and was concerned about the quality of the tip and how long it would last? Surprisingly it’s true what other reviewers wrote, it really is better quality than expected. I purposely waited to write this review so that I have enough time to use the bottle first. There is no swooshing sound of water either. I also love the fact that I can drink while running with ease. Perfect size for 3-5 miles! Just buy it. after using the bottle enough times and ... show more
Reviewed in the United States on June 17, 2021 by Ben Lazar

  • Hard to clean
Size: 8.5oz / 250ml Color: Blue
I absolutely love this little water pouch that helps me on my short and long runs it even help me get through my 10K. Only thing that sucks is the first couple of times are going to taste like plastic even after a good clean.
Reviewed in the United States on September 26, 2023 by Emely Cabrales

  • Great size, perfect for storing, leaked immediately
Size: 13.5oz / 400ml Color: Blue
If you have some extra tape or Saran Wrap, this should be perfect for a hiking trip (which is what I bought it for). It took up very little space with water and without, but no matter how tight the “lid”/nozzle was on, it leaked from the very start. In a backpack that kept getting squeezed as I walked along the trail, the water slowly but steadily drained out of the bottle and into the bag. With a little tape, it was secure again and ready to go - still, it was a bit annoying. It was handy enough that I kept using it throughout the trip, but I would have to look into more permanent fixes or replacement parts before using it again. ... show more
Reviewed in the United States on August 1, 2023 by hnix

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