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  • Compared to a hard bottle of equivalent volume, the Platy bottle is 80% lighter and takes up a mere 1/5th the space when empty
  • Food-grade polyethylene lining ensures bottle won't retain flavors or taste like plastic; bottle is 100% BPA free
  • Compact and flexible design can be flattened when empty and rolled up to fit practically anywhere in your backpack or travel bag
  • Platypus Platy™ bottle stands upright when full
  • Polypropylene screw cap allows quick and easy drinking
  • Add Platypus accessories such as a taste-free drink tube or push/pull cap (both sold separately) to increase the bottle's versatility

Made in USA.

View all Platypus Water Bottles

REI membership


Best Use Backpacking
Liquid Capacity (L) 2.1 liter
Liquid Capacity (fl. oz.) 70
Dimensions 13.8 x 7.5 inches
Water Bottle Material Soft Plastic
Material(s) Polypropylene/polyethylene
BPA Free Yes
Bottle Opening Narrow
Water Bottle Cap Type Screw Cap
Collapsible Yes
Weight 1.3 ounces
Rated 5 out of 5 by from Lasts long time I bought this about 4 years ago for weekend day hikes averaging 3 hours. It works great and is still in good shape with no leaks. You have to leave it puffed open in order to get all the water to dry out so if it is still wet, you don't want to flatten it. Mine is starting to look worn so I think I better replace it before it punctures. You can see on the top of the photo where it looks creased and worn. Not bad for four years.
Date published: 2015-06-07
Rated 5 out of 5 by from Solid accessory! I bought this for stashing extra water on a 5-day AT hike. Pros: no plastic taste, rolls up to small size when empty, survived in my fully-packed backpack and being tossed around camp without any issues at all. Cons: Kind of hard to wash/dry because of small opening, also kind of hard to fill in shallow or slow-moving water. Honestly these are great to have on hand because they allow you to carry a bunch of water when you need it, but they take up only a small amount of space when empty. I've been meaning to get a few in a smaller size as well for my dog to carry in his pack!
Date published: 2017-01-11
Rated 4 out of 5 by from Great for backpacking I have two of these for backpacking and day hiking. They work great, take up little space when empty, never leaked, don't slosh in my pack if I squeeze the air out. However, nearly impossible to fill these from a lake, pond, or stream pool without using another bottle, so I need to carry a rigid bottle in addition to these. Any water bottle you buy at the supermarket will work, I prefer the 1.5 liter size with small cap.
Date published: 2013-04-27
Rated 5 out of 5 by from A very pleasant surprise I recieved this as a Christmas gift a few years ago from my sister and until I used it I didn't think much of it. Since then I have been convinced that it is one of the best bottles/hydration systems you can buy. My first time out with it I just used it as a back up water source on a car trip. Then I started taking it when backpacking for extra water storage with little weight. A while ago I got the hydration hose and when my camelbak bladder was stolen, my platypus became my primary system. My favorite thing is that with multiple bottles you can just switch the hose from one bottle to the other, pack the first down small and get back on the trail. The only downside is the small opening size, but if you are only going to use clean water and dry it out between uses you shouldn't have a problem. I have used it backpacking, day hiking, and snowboarding for four years and haven't had one issue.
Date published: 2013-02-23
Rated 5 out of 5 by from The very best bottle around for the price point! I've bought many bottles in the past, but these are simply the best around. You'll wear out, before one of these does. I use them for storage of water, collection of water, filtration and even personal hygiene. They fold into next to nothing, when not in use, and stand nicely when full. I always carry at least two of them with me when on an outing of any sort. This is a durable product, supported by REI long term, and offered to the members at a reasonable price point. You can't go wrong with these.
Date published: 2014-05-20
Rated 4 out of 5 by from Very difficult to fill I agree with the reviewer that said that this bottle is impossible to fill from a lake or stream. I also had to move the water from my cooking pot to the platy. It is annoying, but not the end of the world. However, do NOT go backpacking with this as your ONLY water container! But other than that... it is a great bottle. Folds up. Easy to store in backpack. No sloshing sound or water weight shifting. No plastic or other tastes (unlike reused Gatorade or soda bottles). Water tastes like water.
Date published: 2013-08-30
Rated 5 out of 5 by from Used as a daily water container for the most part. I originally purchased this product over a year ago to use for backpacking as it packs very nicely. But I use it most as a daily water container. At the school I attend they have free water bottle filling stations. Free water, can't beat it. The container holds a large amount of water, if you don't drink very much, or you don't have a need to carry that much water, I would go with a smaller option. That being said, I do drink a lot of water, usually two or three of these guys in a day. The material it is made of is very tough, I have dropped it, kicked it, and smashed it. It is in my backpack at all times, and I'm not very nice with my backpack. And it sits in there with my very expensive laptop. So that should speak to how much I trust this little guy. The container is nice because it conforms to whatever shape is needed. When it is in with my laptop, it has to be contorted in more ways than one I am sure. This is nice for me because I do not have enough space in my backpack with my laptop to hold any other water container. Also, cleaning this thing is not that bad. Granted, it takes more time than you would think it should, but that's not saying very much. If you are having a real problem with cleaning it, they do sell cleaning brushes. I have not purchased said cleaning brushes because they are not needed. I would recommend this product to anybody. To those who have said the product is not durable are more than likely not capable of using a water fountain alone either.
Date published: 2014-10-27
Rated 5 out of 5 by from Perfect for extra water carrying capacity I have been using these bottles for years. They are indispensable for carrying water when dry camping. They are extremely light weight, don't take up much room in my pack and they are near indestructible. The criticisms I've read are unfounded as far as my experience goes. When I get home I rinse my bottles out and turn them upside down to drain. After draining for awhile, I shake them very hard to try and get out as much remaining water as possible. Then I blow into the bottles to inflate them and then put them out into the garage to dry. I've never gotten mold in one of my bottles. I'm not quite sure why people need to fill a Platy out of a lake or stream. Pretty well every time I fill my Platy it is when I'm pumping water. Around camp I use pots to fill if I'm scooping water out of a stream or pond. The only time I find the need for a separate bottle is if I want to use drink mix.
Date published: 2014-03-28
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will this work with the Sawyer mini water filter is it the same threds 

Asked by: The crazy Litch
The Platy Bottle is not be compatible with the Sawyer Mini Water Filter.
Answered by: REIservice
Date published: 2017-02-22

Are these frozable ? 

Asked by: Steve in CA
Steve, I have had good luck freezing water in the 70 oz bottle. I do not over fill (leave space for water to expand), and I lay the bottle "flat" in the freezer.  This allows a bubble across the top to allow for expansion as the fluid freezes. 
Answered by: EarthSurfer
Date published: 2017-06-20

Is this compatible with my Platypus gravity filter? Can I filter directly into it?

Asked by: jaeaston
​Although it will not connect directly to this bottle the clean hose on the gravity filter can be used to fill up this bottle.
Answered by: REIservice
Date published: 2017-03-28

Can I fill the Platypus with hot water to warm up my sleeping bag for snow camping trips? Will it leak? 

Asked by: Kate B
Platypus bottles will withstand hot liquid but they offer absolutely no insulation; so the risk of burning yourself is high.
Answered by: REIservice
Date published: 2017-04-03

Can you pack wine or bourbon in these bladders?

Asked by: fixin2b1
You can transport any liquid in this bladder but you may risk picking up a plastic taste to your beverage. Platypus makes a wine specific bladder you might wish to consider:
Answered by: REIservice
Date published: 2016-11-21

does this fit the regular sawyer water filter

Asked by: bilo
The Sawyer Mini and Squeeze filters are not compatible with the Platy Water Bottle.
Answered by: REIservice
Date published: 2017-02-22
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