To buy, select Size
Choose from options to the left

Hydrapak Stash - Collapsible BPA & PVC Free Hiking and Backpacking Water Bottle

4.3 4.3 out of 5 stars 1,483 ratings
Price: $19.99 Free Return on some sizes and colors

Blue
Brand HydraPak
Material TPU, PP
Color Blue
Capacity 1 Liters
Special Feature Lightweight, Collapsable

About this item

  • twist to collapse down to 1/4 of it's filled size when empty, minimizing the space it takes up in your pack
  • at 50% lighter than most hard bottles it's the most compact and convenient water bottle solution
  • the flexible walls, tpu carry handle & grip ring create a comfortable carrying experience
  • the 63mm wide mouth screw cap makes it quick and easy to fill
  • safe and reliable, 100% bpa & pvc free
  • made of ultra-durable, abrasion resistant tpu & rf welded seams for superior durability and elasticity
  • Sport type: Outdoor Lifestyle
Add a debit or credit card to save time when you check out
Convenient and secure with 2 clicks. Add your card

From the manufacturer

HydraPak Bottles
Water Bottles for Snow, Hike, Camp
Ultra-Light, Packable, Sustainable Bottles
Beyond Lifetime

Product Description

Welcome to utility and design in harmony. Essential equipment for every adventurer, the Stash 750 flattens for maximum room in your pack. Expands for use on the trail. It’s compact, flexible and 50% lighter than a hard bottle. Construction with purpose. And, of course..

Product information

Technical Details

Additional Information

Product guides and documents

User Guide (PDF)

Looking for specific info?

Customer reviews

4.3 out of 5 stars
4.3 out of 5
1,483 global ratings

Customers say

Customers like the portability and compactability of the bottle. For example, they mention it's great for backpacking and that it collapses down to a very small size. They also like the weight and quality. That said, opinions are mixed on ease of use, leakage, taste, and size.

AI-generated from the text of customer reviews

81 customers mention81 positive0 negative

Customers find the bottle portable and convenient. They say it fits easily in their purse and is great for backpacking. Some customers also mention that it's durable and easy to store.

"...and the way it collapses down so nicely makes it ideal for bringing along on camping trips when the need to pee arises in the middle of the night." Read more

"...it packs down so flat, it takes up hardly any space. It's absolutely great for travel, whether you are going through an airport, or climbing up..." Read more

"...It folds up very easy and was so great to travel with...." Read more

"...However, when empty and not in use, it does collapse into a small easy to stash size." Read more

76 customers mention55 positive21 negative

Customers like the quality of the bottle. They say it's well made, holds up well, and stands up stably. The lid and bottom are made of sturdy plastic, and it has survived a few drop tests. Overall, customers are satisfied with the quality and design of the product.

"...Its bottom is hard plastic, so it stands up stably even when not completely full--a flaw in one of my other bottles...." Read more

"...It's not a lot, but it is annoying. The Stow (500ml flask), however remains solid - no leaks after 1 machine wash." Read more

"...I enjoyed that it took up a small space in my bag. The sides were a little flimsy were not filled with water, but it worked out fine...." Read more

"...It stands up really well on it's own no matter how much water is in it. It folds up very easy and was so great to travel with...." Read more

60 customers mention49 positive11 negative

Customers like that the bottle is collapsible to reduce bulk. They say it fits easily in a purse or cargo pant pocket. Some customers also mention that the product is great for travel.

"...tried drinking from this but the wide mouth and the way it collapses down so nicely makes it ideal for bringing along on camping trips when the need..." Read more

"...it packs down so flat, it takes up hardly any space...." Read more

"I’ve used it for 8 months and its son confortable to carry. The only difficulty is the cleansing process that could be a little bit difficult." Read more

"...It folds up very easy and was so great to travel with...." Read more

32 customers mention29 positive3 negative

Customers find the bottle light and easy to carry. They say it's not bulky and is very handy to pack.

"...I love the idea of collapsing to reduce bulk when it is empty. Very handy to pack." Read more

"...But I like squeezing out the air in this so it's less bulky. seems they pick a feature like sleek when condensed or having the lid that's attached." Read more

"...Second, you save weight. Again, however, you only save 3 ounces over a standard full 1-liter Nalgene. So that’s 38.3...." Read more

"Gross but perfect compact lightweight p bottle for when you're camping and you don't feel like getting out of your tent...." Read more

50 customers mention20 positive30 negative

Customers are mixed about the ease of use of the bottle. Some mention it's super convenient and easy to use, while others say it'll take two hands to drink from.

"...The only difficulty is the cleansing process that could be a little bit difficult." Read more

"...Using both bottles was easy enough - though I would say both are 2-hand bottles since there is little support due to the collapsable nature...." Read more

"...3- No one handed drinking...." Read more

"PRO: As advertised: collapsible, portable, convenient.CON: Does not insulate well so expect lots of condensation on the outside...." Read more

32 customers mention11 positive21 negative

Customers are mixed about the taste of the bottle. Some mention that after a few rinses with cold water, the water tastes just like water. They say it's relatively easy to drink from when on the move. However, others say that they could not remove the taste or odor of the plastic.

"...The chemical aftertaste is real though!..." Read more

"...No leaks over the 2 weeks of hiking/traveling, and the water tasted like water after the first use (no smell or weird taste)...." Read more

"...After a few hours, I noticed that the water now had a foul taste and smell. I still had some of the bottled water left and tried it by itself...." Read more

"...It had a strong smell and taste for the first couple of weeks which I was able to get out with vinegar and baking soda..." Read more

31 customers mention12 positive19 negative

Customers are mixed about the leakage of the bottle. Some mention that it doesn't leak at all, while others say that it leaks water. The cap seals very well, and it has survived a few drop tests. However, some customers say that the bottle flops a little, creating spills.

"...It becomes very east for the bottle flop a little, creating spills...." Read more

"...No leaks over the 2 weeks of hiking/traveling, and the water tasted like water after the first use..." Read more

"...It is NOT leaking from the bottle. It is fluid on the outer rim of the inside of the cap groove. Just be aware of that...." Read more

"...I fixed that and...no leaks. I love the wide mouth and it collapses easily when empty. I can't find anything to complain about with this bottle...." Read more

29 customers mention19 positive10 negative

Customers are mixed about the size of the bottle. Some mention that it easily fits into their fatigues, is convenient, and great for 10 mile walks. However, others say that it's too large to fit into most expandable mesh, too small for practical use, and the lid is too thick and takes too much space.

"Have not tried drinking from this but the wide mouth and the way it collapses down so nicely makes it ideal for bringing along on camping trips when..." Read more

"...Keep in mind, this will not fit a standard cup holder in the car, since the base is slightly larger." Read more

"...I fixed that and...no leaks. I love the wide mouth and it collapses easily when empty. I can't find anything to complain about with this bottle...." Read more

"...Too bad- it has other features that are a big plus- like the wide mouth that makes it quicker to clean and dry, and the fold-up feature that is nice..." Read more

Very clever idea with with quality that makes it useless- review updated- see the end
2 Stars
Very clever idea with with quality that makes it useless- review updated- see the end
Bought this on June 24th. Used it a few times for a day hike. Just used it a couple of days ago, and... no matter how hard I tighten the cap, it leaks if I gently squeeze it. No O-ring in the design- just mating plastic edges that are apparently not good enough to make a seal. So I have to throw away $25 as I throw this in the trash...Too bad- it has other features that are a big plus- like the wide mouth that makes it quicker to clean and dry, and the fold-up feature that is nice for storage, but can't use it if it won't seal.Update: contacted cust service at hydra pak re their warranty- they made it a bit hard but they did end up sending me a replacement. So far, it's not leaking, so I added a star.
Hide
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

Kevin Kane
5.0 out of 5 stars Works great as an overnight pee bottle to stash in your backpacking gear
Reviewed in the United States on April 23, 2024
Verified Purchase
Have not tried drinking from this but the wide mouth and the way it collapses down so nicely makes it ideal for bringing along on camping trips when the need to pee arises in the middle of the night.
One person found this helpful
Helpful
 Report
Mary
5.0 out of 5 stars durable collapsible water bottle that stands up no matter how much/little liquid is in it
Reviewed in the United States on March 1, 2024
Size: 1-LiterColor: BlueVerified Purchase
This is my favorite of my 3 different collapsible bottles. Its bottom is hard plastic, so it stands up stably even when not completely full--a flaw in one of my other bottles. it packs down so flat, it takes up hardly any space. It's absolutely great for travel, whether you are going through an airport, or climbing up Mayan pyramids, or slogging through the South American jungle. This one has a permanent place in my backpack.
2 people found this helpful
Helpful
 Report
someguy
4.0 out of 5 stars Not (top shelf) dishwasher save - recommend washing by hand.
Reviewed in the United States on July 28, 2023
Size: 1-LiterColor: BlueVerified Purchase
I purchased both Stash and a Stow from Hydropack. (I hand washed them prior to my trip).

No leaks over the 2 weeks of hiking/traveling, and the water tasted like water after the first use (no smell or weird taste). I hand washed on occasion. (I was not in a hot place, so the water did not get warm where it may more easily leach things from the bottle).

Using both bottles was easy enough - though I would say both are 2-hand bottles since there is little support due to the collapsable nature.

After returning from my trip, I washed both the Stash and the Stow on the top shelf of our dishwasher using the 'normal' cycle. After doing so, I checked the integrity of the water seal and unfortunately, the Stash leaks profusely at the screw top. It does not take much pressure to force water to spill out. It's not a lot, but it is annoying. The Stow (500ml flask), however remains solid - no leaks after 1 machine wash.
7 people found this helpful
Helpful
 Report
Cristian leal
5.0 out of 5 stars Really usefull
Reviewed in the United States on January 3, 2024
Size: 750 mlColor: Malibu BlueVerified Purchase
I’ve used it for 8 months and its son confortable to carry. The only difficulty is the cleansing process that could be a little bit difficult.
Helpful
 Report
Cararisah
5.0 out of 5 stars More impressed than I thought I would be!
Reviewed in the United States on June 8, 2018
Verified Purchase
I was quite surprised with how much I love this water bottle. Reading the reviews I had low expectations (need to use two hands to drink out of, leaves a chemical after taste, lid doesn't stay attached like a nalgene).

Well. I can drink this thing pretty much until it's empty with one hand, I just hold it close to the water level as it gets lower. The chemical aftertaste is real though! I filled it with water and let it sit for 24 hours then dumped it out and repeated that two more times and the taste was gone. So just be prepared to rinse it out for a few days before you start using it.

It stands up really well on it's own no matter how much water is in it. It folds up very easy and was so great to travel with. I would go for a short hike and just bring my very small bag, it was so great to be able to fold this up and store it once it's empty!! Not to mention, when going through the airport it was excellent to have a water bottle that stored so small. Nalgene lids stay attached which is nice for not dropping it, but I actually don't like having to hold it away from my face when it drink otherwise it bumps me. I prefer a lid that detaches completely as it turns out, so that ended up being a plus!

I left this behind at my hotel by accident and immediately was set to buy another one, however someone found it and agreed to mail it back to me, so I don't need to just now. But, I would buy this a second time in a heartbeat!
31 people found this helpful
Helpful
 Report
Tracy G
3.0 out of 5 stars A little awkward to use
Reviewed in the United States on January 19, 2024
Size: 1-LiterColor: BlueVerified Purchase
It does what it is meant to, but once the bottle is even less that 75% full, it starts to lose its stability and becomes a bit awkward to remove the lid and drink from. It becomes very east for the bottle flop a little, creating spills. However, when empty and not in use, it does collapse into a small easy to stash size.
Helpful
 Report
Linda
5.0 out of 5 stars No problem with taste!
Reviewed in the United States on July 4, 2023
Size: 1-LiterColor: BlueVerified Purchase
I saw lots of reviews with taste problems and was concerned as I am super sensitive to smells and tastes. After washing it (as one should before using) it was fine. Perhaps this problem has been resolved by the manufacturer? I will try storing water in it for a bit for a test. I love the idea of collapsing to reduce bulk when it is empty. Very handy to pack.
2 people found this helpful
Helpful
 Report
Robert H. Wilmoth
1.0 out of 5 stars Bottle adds smell and bad taste to water
Reviewed in the United States on September 16, 2023
Verified Purchase
I liked the compactness of the product and the way it folded down. Its the main reason I bought it. Unfortunately, after heading out to Europe and using it for the first time 2 weeks after purchasing, I filled it with plain bottled water. After a few hours, I noticed that the water now had a foul taste and smell. I still had some of the bottled water left and tried it by itself. It was fine no odor or taste. I emptied the Hydrapak and the smell was quite evident. I though this was a BPA free product. I got back from Europe and the window for returns had closed. Very disappointing performance for a premium price product. Do not waste your money on this product.
5 people found this helpful
Helpful
 Report

Top reviews from other countries

Translate all reviews to English
Daniel Nava
5.0 out of 5 stars La mejor botella para viajes
Reviewed in Mexico on March 18, 2024
Size: 750 mlColor: Mammoth GreyVerified Purchase
He probado varias botellas plegables y esta ha sido sin duda la mejor, la calidad del plástico es excelente, la tapa cierra perfectamente y nunca se ha derramamdo ni una gota.
Es cierto que el agua toma un sabor plasticoso durante los primeros usos, pero creo que vale la pena por lo práctica que es en general.
Volvería a comprarla 10 veces más
Report
Amazon Customer
5.0 out of 5 stars Perfect!
Reviewed in Canada on April 26, 2023
Verified Purchase
Perfect!
Report
Vinicius Basso preti
1.0 out of 5 stars Deixa gosto de plastico na agua e furou em menos de 30 dias
Reviewed in Brazil on August 29, 2021
Size: 1-LiterColor: BlueVerified Purchase
Nao recomendo! Gosto de plastico forte na agua e furou com menos de 1 mes de uso. Horrivel
Report
Bazzr14
5.0 out of 5 stars Very compressible
Reviewed in the United Kingdom on April 2, 2024
Verified Purchase
A great “extra” bottle to take bikepacking, compressible and easy to carry, the bottle has a large mouth making it easy to fill, lightweight but sturdy.
Report
MAFI
5.0 out of 5 stars Super
Reviewed in Germany on September 24, 2023
Size: 750 mlColor: Mammoth GreyVerified Purchase
Hält dicht, ist robust und das beste ist, dass das Packmaß. Zusammengefalltet passt sie in jede Seitentasche.
Report