HydraPak Stow Collapsible Water Bottle (350ml, 500ml, 1L)

$13.93

Category: Hiking Gear Tags: 350ml, 500ml, best hiking gear, Bottle, Collapsible, hiking accessories, hiking equipment, hiking essentials, hiking gear, hiking supplies, hiking tools, HydraPak, mountain hiking gear, outdoor hiking gear, Stow, trekking gear, Water

Description

Price: $13.93
(as of Oct 24, 2026 12:16:10 UTC – Details)

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Customers say

Customers find the water bottle to be of good quality and appreciate its portability, noting it fits perfectly on backpack sides and slips easily into pants cargo pockets. Moreover, the bottle works well for various activities including skiing, snowboarding, and backpacking. However, durability receives mixed feedback – while some say it will last seasons, others report it breaking after one use. Additionally, leakage is a concern, with some reporting it doesn't leak while others say it leaks everywhere. Furthermore, taste is a significant issue, with multiple customers reporting the water tastes like plastic.

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251 customers mention quality, 204 positive, 47 negative

Customers love this water bottle, describing it as a great pocket flask.

…I used it everyday and was able to stay hydrated. I highly recommend this if you travel and don't want to use precious packing space.Read more

…Otherwise, this was a great product I purchased for my son to use while snowboarding at snowboard school at one of our local mountains….Read more

…WHEN YOU NEED WATER IN A QUIET WAY THESE ARE GREAT. NO SLOSHING AND COLLAPSES AS YOU EMPTY.Read more

…This was perfect, and fits in my jacket pockets. I have fallen numerous times with this bottle and have never had issues with leaks or blow-outs.Read more

162 customers mention size, 138 positive, 24 negative

Customers appreciate the water bottle's size, noting it's nice to keep in a jacket and fits perfectly on the side of a pack while hiking. The bottle gets smaller as it empties, making it easy to slip into backpacks or fanny packs.

…I purchased it for a trip to Rome as it was the perfect size. However it made the water taste nasty. I washed it several times and nothing helped….Read more

The material on this water bag feels great, it folds up nice and small, 1 liter is a great size, and it's just simple….Read more

500ml is a good size to keep on me for hydration when traveling and hiking. It’s compact when full and reduces in size as you drink….Read more

Bought this to stay hydrated while on the mountain. Perfect pocket size: Didn't need a whole liter or two and the hassle of a full hydration…Read more

155 customers mention portability, 142 positive, 13 negative

Customers appreciate the water bottle's portability, finding it convenient for travel and easy to pack, with one customer noting it's comfortable to carry in a pants cargo pocket.

Great for travel.Read more

…It's pliable, light and easy to carry with the plastic ring. It also folds up to store in a small pocket/space….Read more

While it fits nicely in my bag and is portable, it gave the water a horrible taste, even after several washings. UGH!Read more

…Water Bottle has exceeded my expectations in terms of convenience, portability, and functionality….Read more

108 customers mention functionality, 83 positive, 25 negative

Customers find that the water bottle works well, particularly during outdoor activities like snowboarding and backpacking.

Works great! Perfect for on the go. I am a bit scent sensitive so I followed the company’s instruction to freeze lemon water for 24 hrs and defrost….Read more

…it worked great for that. More recently, I also found it is great for fanny packs. Many bottles don't fit in fanny packs or only in certain ones….Read more

Works well and collapses small.Read more

…Pretty much making them unusable. Wish I wasn't past the return window, because they would go back.Read more

86 customers mention suitability, 81 positive, 5 negative

Customers find the water bottle suitable for various winter activities, particularly skiing and snowboarding, as well as hiking and camping.

Great for skiing to drink while on the lift. This is flexible so I went for it and go a wet bottom. Cap is not leak proof.Read more

…Excellent one-direction spout that prevents spills. It’s also perfect for hiking!! I’m in love, I’ll be getting this for my family!Read more

Perfect for skiing.Read more

…It is also great for hiking if you are an enthusiast. This is definitely a no Brainerd for everyone on the go.Read more

185 customers mention leakage, 115 positive, 70 negative

Customers have mixed experiences with the water bottle's seal, with some reporting it doesn't leak and holds up well, while others mention it leaks everywhere.

Works fine, no leaks but the cap is difficult to put back on. Almost feels like you’re stripping the cap trying to screw it back on….Read more

…Threads are not long enough to seal to the gasket and it leaks….Read more

This water bottle doesn’t leak, will fit into pockets on your pack that steel water bottles won’t, and I have found is resistant to freezing as well….Read more

…water bottle I love it its easy to drink out of and easy to fill it doesn't leak my 4 uear old loves it I bought multiple sizes cause I love them so…Read more

123 customers mention durability, 75 positive, 48 negative

Customers have mixed experiences with the water bottle's durability, with some finding it durable enough to last seasons, while others report it breaking after one use, particularly noting issues with the plastic cap cover.

Got this specifically to toss in my snowboard jacket. It’s durable and perfectly functional. Definitely my favorite accessory I’ve bought this year….Read more

Great function but not durableRead more

Love these Hydrapak Flasks. They're sturdy and leak free and a great value for the money. They're easy to clean after use and store nicely….Read more

…Very durable and come in several sizes. I like that it has the loop to easily hold and that it has a cap over the top….Read more

121 customers mention taste, 27 positive, 94 negative

Customers report that the water bottle has a weird taste, with multiple reviews specifically mentioning that it tastes like plastic.

…is the material that it’s made out of gives the water, a horrible, horrible taste. I have washed it over and over, hot water, baking soda….Read more

I’ve had this for almost a year. Water tastes like plastic every time I use it despite washing it with soap multiple times….Read more

…Knocked off a star because of the plastic taste and the cap. The plastic taste gets worse as the start sits, so if it’s drank promptly it’d be ok….Read more

…No leaks, no funny smell and no funny taste from this water bottle. It's a soft flask so you can collapse it as it empties….Read more

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Top reviews from the United States

nathan trotter

Great for kids. smaller than the next size up

Reviewed in the United States on March 1, 2026

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Love these Hydrapak Flasks. They're sturdy and leak free and a great value for the money. They're easy to clean after use and store nicely. Note: These do have a strong plastic taste unless cleaned properly before first use. a water, lemon juice, baking soda mixture works great to remove the plastic taste. Ensure you do this before first use with drinking water. Otherwise, this was a great product I purchased for my son to use while snowboarding at snowboard school at one of our local mountains. It fit great in his jacket and is smaller in heighth than the next size up. I add that because I had to search forevor to confirm before buying. It is in fact shorter than the 500ML version.

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18 people found this helpful

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Bubble Metropolis

Ideal for Music Festivals!

Reviewed in the United States on June 2, 2024

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The Hydrapak Stow Collapsible Water Bottle has been a game-changer for me during music festivals. Here's why I love it:

Portability: Its collapsible design makes it incredibly easy to carry around, especially when space is limited. I can simply fold it up and stash it in my bag or pocket when I'm on the move, which is essential when navigating crowded festival grounds.

Lightweight: This water bottle is ultra-lightweight, so it doesn't add any unnecessary bulk to my festival essentials. I can enjoy staying hydrated without feeling weighed down by a heavy water bottle.

Easy to Use: The squeeze bag pouch and easy-open cap make it a breeze to hydrate on the go. I can quickly take a sip of water between sets without missing a beat.

Large Capacity: Despite its compact size when collapsed, the 1-liter capacity is perfect for ensuring I have enough water to stay hydrated throughout the day. I appreciate not having to constantly refill it, allowing me to focus on enjoying the music.

Durability: The BPA-free construction is durable enough to withstand the rigors of festival life. I don't have to worry about it getting damaged or leaking in my bag, even when things get a bit chaotic.

Overall, the Hydrapak Stow Collapsible Water Bottle has exceeded my expectations in terms of convenience, portability, and functionality. It's become an essential companion for me during music festivals, allowing me to stay hydrated and enjoy the experience to the fullest. If you're looking for a reliable water bottle for your next festival adventure, I highly recommend giving this one a try.

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30 people found this helpful

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Adirondack D

Works Great for My Purposes, but it failed after about 1.5 years

Reviewed in the United States on February 21, 2026

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I purchased the 500ml and use it mostly for downhill skiing. It can be stuffed into a pocket, and I can often refill it at some point during the day. For several years, I had tried using a small camelback type pack water bottle for this, but found that it wore a hole in the back of my expensive Gore-Tex jacket, so I switched to this. When I'm using a pack on adventures further from a water source, I use larger water bottles or pack compatible camelbacks, This HydraPak worked great, and I was happy with it, until….

About 1.5 years into it's use, it sprung a leak. The leak is somewhere around the bottle cap, where hard plastic meets the soft water bottle. At that point, the bottle was useless. The leak happened while the bottle was in my pack on the way to the ski hill, leaving several items wet. I've had other water bottles fail, but this seemed to be a relatively short time frame.

Still, everything else about this bottle worked fine. It stashes nicely, is easy to drink from, being soft is easy to pack, and is reasonably priced. The major (and it was major) drawback is that it failed. I purchased a new one (on sale). Currently, I'll give it 4 stars for now, but a second failure in similar short order would change that and make me look for another alternative.

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14 people found this helpful

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Cheryl M.

HydraPak Stow Collapsible Water Bottle – Perfect for Backpacking & Bear Vaults!

Reviewed in the United States on July 17, 2026

Style: 12oz/350mlColor: MTN Redwood

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This HydraPak Stow Collapsible Water Bottle was a lifesaver on a recent 6-day backpacking trip on the Allegheny Trail. I used it daily for my electrolyte water and couldn’t be happier with it.
Why It’s Great:
Packs down super small when empty, making it easy to store in a bear vault or stuff in a pack without taking up much space.
Expands to a full usable size with a secure cap and easy-to-carry handle. Clipped mine on my pack strap with a carabiner during the day.
Durable and flexible material that held up well on the trail.
Lightweight and convenient for multi-day trips.
I’m very pleased with this purchase and got it at a great price. If you do any backpacking, hiking, or travel where space and weight matter, this collapsible bottle is an excellent choice.

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Cheryl M.

HydraPak Stow Collapsible Water Bottle – Perfect for Backpacking & Bear Vaults!

Reviewed in the United States on July 17, 2026

Style: 12oz/350mlColor: MTN Redwood

Verified Purchase

This HydraPak Stow Collapsible Water Bottle was a lifesaver on a recent 6-day backpacking trip on the Allegheny Trail. I used it daily for my electrolyte water and couldn’t be happier with it.
Why It’s Great:
Packs down super small when empty, making it easy to store in a bear vault or stuff in a pack without taking up much space.
Expands to a full usable size with a secure cap and easy-to-carry handle. Clipped mine on my pack strap with a carabiner during the day.
Durable and flexible material that held up well on the trail.
Lightweight and convenient for multi-day trips.
I’m very pleased with this purchase and got it at a great price. If you do any backpacking, hiking, or travel where space and weight matter, this collapsible bottle is an excellent choice.
6 people found this helpful

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Keyboard Monster

Great, flexible water bottle.

Reviewed in the United States on October 13, 2025

Style: 32oz/1LColor: Tahoe Blue

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I was going on a trip and was unsure how available water would be during my adventuring, so wanted to be able to bring a liter of water if necessary, but didn't want to always dedicate bag space to a liter bottle. This is perfect because if you put in less water, it takes up less space. And since it's flexible, it fits in a bag much easier and also decreases in size as you drink. I also found it was great for the plane because I just kept it in my lap for easy access and it didn't roll away. Honestly, awesome. I kind of want to get the smaller one, but probably don't need it since I can fill the 1L up halfway. (Also, the 17 oz bottle is the same price as the 1L on here.)

Mine tasted vaguely chemically at first. I washed it with dish soap and then froze it with lemon water, and it didn't make much of a difference. There wasn't time to try again before leaving, but over the course of my trip, the weird flavor disappeared. If the flavor had been really strong, I don't know what I would have done.

Note: I saw a comment about how gross the mouthpiece gets and was worried, but it wasn't an issue for me. I used it for water only, and didn't really wash it during the trip (gross, I know) because the country I was in didn't have potable tap water. That said, after 13 days, the mouthpiece still looks clean.

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19 people found this helpful

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Kristine

Perfect water bottle

Reviewed in the United States on October 9, 2026

Style: 32oz/1LColor: Redwood

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This water bottle is so cool. I originally bought it so I could carry my water for coffee and hot cocoa while on hikes but it turned into a really cool water bottle I love it its easy to drink out of and easy to fill it doesn't leak my 4 uear old loves it I bought multiple sizes cause I love them so much.

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Kaiti Zuidema

Good concept, needs work.

Reviewed in the United States on September 20, 2026

Style: 32oz/1LColor: *NEW* Glacier Blue

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I love having a travel bottle that collapses down like this one, and the flip top is secure so it never leaks. The size is perfect for a day trip or a day of flying too. The problem I had with it was rethreading the cap back on after filling it. My husband had the same problem. It took quite a few tries to get to screwed back on, and we both finally had to sit down to concentrate on it. This was not the best thing to be trying to do in a crowded airport with one hand on my luggage and my backpack dangling off my shoulder. It's a work around issue, not a reason to keep from buying the bottle.

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2 people found this helpful

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Liza Seaman

Quality materials, convenient size

Reviewed in the United States on July 21, 2026

Style: 17oz/500mlColor: *NEW* Sage Green

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Great quality item that unfortunately just doesn't suit my (very specific) needs, but it seems to meet or exceeds all product specs.

My favorite thing about this is shape and size. It's so convenient to have something in the same shape/size as a flask. Love that you can just shove it in a pocket. VERY lightweight.

Materials feel like they are of great quality, the bottle has the flexibility/collapsibility aspect while still feeling durable. Unfortunately I do find it a little awkward to drink from due to the flexibility. I don't think this is a fault of the specific product, someone used to using collapsible water bottles may not have any issues.

Personally, I would enjoy a similar bottle that's a little bit firmer in the hand, even if it meant it didn't collapse as easily (or at all!). HydraPak does have some products that function that way but I really wanted the flask-like shape and size of this one!

I didn't love the cap cover, I would've preferred if it was removable. The drinking cap is pretty spill-proof so it seemed like the main purpose of the plastic cap was to keep dirt out/general sanitary reasons – which is great, but I really needed to be able to drink one-handed and it was harder than expected to flip the plastic cap open/closed without needing to get my other hand involved.

I don't really see the point of the measurement markers on the side, because (unless I'm doing something terribly wrong) you can't really use this bottle if there's air inside – if you do, it's harder to drink without getting an uncomfortable gulp of air. Not really a problem but I thought it was odd.

It's not easy to dry after washing since you can't really stick a towel inside to hand dry, and it takes more than a day for the inside to air dry, so I'd be a little bit worried about mold.

Overall, I think it's a pretty solid collapsible water bottle and the problems I have with it are possible user error. It's well made and a pretty convenient little bottle.

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One person found this helpful

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Top reviews from other countries

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YURHENI TORRES

EXCELENTE PRODUCTO

Reviewed in Mexico on August 18, 2023

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Una excelente forma de transportar agua, no pesa ni ocupa espacio cuando no está en uso, resistente y no le da al agua mal sabor o aroma .

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Anne

handig mee te nemen

Reviewed in the Netherlands on September 14, 2026

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Handig om mee te nemen, kan onderin een kleine schoudertas. Lastig om uit te drinken: in de zak knijpen en zuigen. Lekt niet, knoeit wel als de dop eraf is, omdat de zak slap is. Jammer dat dop en zak los van elkaar zijn, dst is lastig bij open opbergen.

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GRM

Excelente producto

Reviewed in Mexico on June 17, 2026

Style: 32oz/1LColor: Tahoe Blue

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Buen producto, se ve resistente.

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Luis Palenzuela

NO PIERDE EL SABOR A PLÁSTICO

Reviewed in Spain on November 6, 2025

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Tras muchos enjuagues sigue sabiendo a plástico lo que la hace inservible

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やっけ

冷凍できました。

Reviewed in Japan on September 8, 2024

Style: 32oz/1LColor: Tahoe Blue

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凍らせてリュックの背面に入れることで保冷剤としても活躍しました。とっても便利です。

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