My Verdict
The Platypus Platy 2.0L is one of the easiest collapsible bottles to recommend for hikers and backpackers who want extra water capacity without extra bulk. I have found it very light, compact when folded, and a useful 2-liter size for carrying extra water.
Its biggest strength, and the reason I take it, is that it folds flat and wastes almost no space. When full, you get a dependable 2-liter carry for long dry stretches or camp water, and it is filter-compatible, so on many backpacking trips I run a filter straight off it. That combination makes it a solid backcountry standard, and it is my best-overall pick in the best collapsible water bottles guide.
It is not perfect. It is not insulated, so the water warms up fast in hot weather. The cap is not attached, so it is easy to misplace. And because the body is flexible, you need both hands to drink from it. But for an ultralight, compact, leakproof bottle with strong capacity, the Platy 2.0L is hard to beat. For rigid, insulated, and everyday trail options, see my best water bottles for hiking and backpacking comparison.
My Rating: 4.6 / 5
- Weight and packability: 4.9 / 5
- Leak resistance: 4.8 / 5
- Durability: 4.4 / 5
- Taste neutrality: 4.8 / 5
- Ease of drinking: 4.0 / 5
- Value: 4.5 / 5
Quick Specs
| Spec | Detail |
|---|---|
| Capacity | 2 L (about 68 fl oz) |
| Weight | 1.3 oz (36 g) |
| Material | BPA-free polyethylene/polyester film, taste-free |
| Type | Collapsible narrow-mouth soft bottle |
| Closure | Screw cap (not attached) |
| Insulated | No |
| Filter compatible | Yes, with most threaded filters |
| Packed size | Folds and rolls flat |
| Origin | Made in USA |
| Price | Around $13 to $16 |
Platypus Platy 2.0L: Field Use and Real-World Performance
Ease of Use
If you understand the purpose of this bottle and set your expectations accordingly, you will appreciate it. It is very easy to use and carry as an extra-water bottle. Because it is large and flexible, it is not easy to drink from with one hand, which is why I do not treat it as my primary bottle but as extra capacity.
Filling the Platypus Platy 2.0L on trail, which is where its lightweight extra-capacity design becomes most useful.The mouth is narrow, so it is a little slow to fill, and in shallow creeks it was hard to fill quickly and fully. The flexible body is not as easy to manage as a rigid bottle when full, and I do not love holding the cap in one hand and the bottle in the other to drink. Since it is a soft bottle, you need both hands. That is the trade-off you accept for saving so much weight and space.
The Platypus Platy 2.0L paired with a water filter on trail, which is one of the most practical ways to use it in the backcountry.I used it with my backpacking water filter, and it was straightforward, and the simple screw cap is easy to wash. As a packable spare, a camp-water bottle, or a bottle paired with a filter, it works very well. If you are torn between a flexible bottle and a reservoir, my hydration bladder vs water bottle guide breaks down where each makes sense.
Portability
At just 1.3 ounces, it is dramatically lighter than most rigid bottles, and portability is the whole reason I carry it. The problem with a rigid spare bottle is that it takes up space even when empty. The Platy does not. It folds flat, packs easily, and only takes up room when you fill it.
The Platypus Platy 2.0L folded flat on a backpack, showing why it works so well as a low-bulk extra water bottle.As you drink it down, it slowly gives that space back, which I love. That is why I reach for it on long dry carries or for camp use instead of a heavier bottle. It is so light and packable that I often bring it even when I am not sure I will need it. When full, it is awkward to fit in my daypack’s side pocket, so I pack it inside the bag instead. And if you’d rather keep most of your water in a reservoir and use the Platy as backup storage, these are the hydration bladders I trust most
The Platypus Platy 2.0L carried in a backpack side pocket, showing how it works as extra water capacity on trail.Durability
The material is soft but tough, which makes it unlikely to crack. Compared with my Vapur soft bottle, the Platy’s construction quality felt superior. Over the past few years of use, I have never worried about it cracking while folding or packing, and that reliability is a big reason it is my top pick in the collapsible category.
That said, it is still a soft bottle, not a hard-sided tank. After three years I have not seen it, but seam wear could eventually show up with heavy use. I handle it carefully when it is full, and I would not risk dropping it on sharp rocks full of water. It is durable for a soft bottle, just not indestructible the way a rigid bottle can feel.
Taste and Odor
In my use it has never held the odor or taste of previous drinks. It was taste-free right out of the box, which matters a lot for a soft bottle, and it has stayed neutral ever since. I do not put hydration mixes in it, since I use it for plain extra water and keep drink mixes in my primary bottle, but the neutral taste is a real plus.
Comparison with Similar Bottles
Platypus Platy 2.0L vs. Vapur Wide Mouth Anti-Bottle
The Vapur Wide Mouth Anti-Bottle is the obvious alternative, since it is also collapsible and easy to pack.
The Platypus Platy 2.0L next to a Vapur bottle and a Nalgene, showing the difference between collapsible and rigid water bottle styles.Both are useful, but I prefer the Platy for backpacking-focused use, and its construction felt better made than my Vapur. The Vapur is easier to clean thanks to its wide mouth, and its lid is attached so you never worry about losing it, which is a real advantage over the Platy. But the Platy feels more proven as a straightforward extra-capacity bottle, while the Vapur is a little more general-purpose. For trail-focused extra water carry, I still pick the Platy.
Platypus Platy 2.0L vs. Hydro Flask Wide Mouth Insulated Bottle
This one is about priorities. A Hydro Flask Wide Mouth gives you insulation, easy one-handed drinking, and a sturdier everyday experience, but it is much heavier and bulkier. The Platy wins when you want low weight and packability. In hot weather, if you want your drink to stay cold, the Hydro Flask wins, since Platy water warms up. I make that trade over and over to cut pack weight.
Pros and Cons
Pros
- Extremely lightweight (1.3 oz)
- Folds flat and packs to almost nothing
- Leakproof with the cap seated properly
- Durable for a soft bottle
- Taste and odor neutral
- Great for extra water carry
- Filter compatible
Cons
- Not insulated, so water warms up in heat
- Narrow mouth is slower to fill, especially from shallow creeks
- Cap is not attached, so it is easy to misplace
- Needs two hands to drink from when full
Who I Think It’s Best For
The Platypus Platy 2.0L is best for backpackers who want extra water capacity without carrying a rigid spare bottle, and for covering long, dry trail sections. I also use it to carry extra water for camping and cooking, and it pairs with most water filters. It is not the bottle for you if you want insulation, and it is slow to fill from anything but a tap.
I would not use it as a primary drinking bottle, since it is hard to drink from on the go and needs both hands. On day hikes I treat it as extra capacity rather than my main bottle, which is also how I build out my day hiking checklist.
How I Tested
I have used the Platypus Platy 2.0L for about three years on backpacking trips and day hikes, as extra water capacity, camp storage, and a filter bottle. I filled it from creeks and taps, ran a water filter off it, packed it full and empty to judge how it carries and folds, and watched the seams and cap over the long term. I judged it on what matters for a collapsible bottle: weight and packed size, leak resistance, how it fills and drinks, taste neutrality, and durability over years of use. My full approach is in how I test hiking gear.
Final Verdict
The Platypus Platy 2.0L is one of the lightest, most flexible water bottles I have used, and a great way to carry extra water. It is not an all-purpose bottle, and it is not insulated, so do not expect cold water in the heat. But if you want 2 liters of extra capacity that folds flat when empty and adds almost no weight to your pack, it makes a lot of sense. The biggest selling point is how little space and weight it adds when you do not need it, and the biggest downsides are the loose cap and the two-handed drinking. For me those are easy trade-offs, and they are exactly why this bottle keeps working so well for backpacking.
FAQs
Is the Platypus Platy 2.0L worth it?
Yes, if you want a lightweight collapsible bottle for extra water carry. I have found it useful and practical for backpacking, camp storage, and dry stretches, because taking a big rigid bottle would be bulkier than necessary.
Does the Platypus Platy 2.0L leak?
In my use, I’ve never noticed it leaking, even a tiny drop. More broadly, it also has a strong reputation for being leakproof when the cap is seated properly.
Is the Platypus Platy 2.0L insulated?
No. It is not designed for temperature retention, so you should expect ambient-temperature water.
Can the Platypus Platy 2.0L work with water filters?
Yes. It is compatible with most water filters, and I even use it with a water filter in the backcountry. It is actually one of the reasons it works so well as a backcountry carry-and-storage bottle.
What is the biggest downside of the Platypus Platy 2.0L?
For me, it is the loose cap and the fact that it is a bit awkward to drink from when full. Those are not deal breakers, but they are the two things that keep it from feeling perfect.
