Platypus SoftBottle Collapsible Backpacking Water Bottle with Closure Cap

This upgraded my travel experience more than items I’ve spent 5X as much on.Unlike a structured water bottle, this travels compact and flat, and takes up almost zero luggage space. This is so much better than metal in your luggage or a bottle on a carabiner. TSA also has zero interest in a flat plastic bladder, so it’s not at all something you need to keep in mind at security.Once you’re at your destination, it fills up easily because the neck can bend. There are faucets that would have been impossible to use with other containers that were no problem for my Platypus. Also, the bottle seals completely and weighs barely more than the water within, so it can do things like fit sideways on top of cans in a mini-bar (especially useful for hotel rooms where a stocked mini-bar is the only fridge).It travels well, fills and holds water well (including standing upright when expanded), and is economically priced. I drink enough water that I bought a second Platypus so one can cool while I drink the other. Highly recommended!

This is the best water bottle! I don't like to lug water and this is perfect to stow while traveling and fill up at the hotel water filtration station.

I really want to give these Platypus water bottles 5 stars, but they need to solve the problem of the unattached cap. We've been using these bottles for a few months now, and they're great on the trail. They're very easy to hold and drink out of, and I really appreciate a collapsible water bottle that doesn't require you to suck or bite to get the water through the cap. But it's too easy to lose the cap. And they don't sell replacements. I had to go through my refrigerator trying every cap. A Hoisin sauce bottle cap worked best. Great bottle, please please add a strap to attach the cap!

I used this while traveling through Africa and it was very useful.

Our family has used Platypus soft bottles for a while now, and I accidentally left one in an airport. That's when I realized how much I loved these since I missed not having it with me.When unused and prior to going through security at an airport, you can roll this baby up and tuck it in a side pocket of your backpack. Once you're through security, just fill it up at a fill station. As we drink on our flights, we press the excess air out (to minimize size), tighten the cap, and store it back in our backpack under our seat. It makes easy access for water on a flight so easy. Never had any leak problems with these either. Just problems leaving them at airports apparently. :)

I bought the 1-liter Platypus collapsible bottle for my vacation, and it met my expectations.The bottle is incredibly lightweight and collapses down to a compact size, making it easy to fit in my backpack without taking up much space. The only negative, and it’s a minor one, is drying it out between uses. It takes a couple of days to completely dry.

I bought this for a recent trip to universal studios in Orlando. The plan was to carry it in a cross body pack that was on the smaller side and use the free fountains there to fill it during the day. I have to say it was more than perfect for this plan! It rolled up small enough to be barely noticeable in my pack and when I needed it, it fit the bill perfectly. And it held way more water than my friends other branded collapsible water bottle so I only had to refill it half as many times.

[Price]Currently $13/per 1L bag. The 1L water bottle in the photos was $5 from the airport (overpriced), which I have used many times after my trip and could continue using (presumably less off-gassing/plastic leaching the more you use).[Space-efficiency]The bag is not particularly space-efficient, as you can see in the photos. Although I can appreciate the design on the bottom which allows the bag to stand upright, it wastes a lot of space. Given how large the bag appears relative to the bottle, I assumed it actually held more than the stated 1L, but was surprised to find it doesn't when emptying its contents into the bottle shown. It seems the designer(s) primarily prioritized "empty-state flatness", but I think they should have compromised on the empty state geometry a bit and optimized more for the "full-state", even if it meant the empty-state was not 100% flat.[Packability]While I appreciate that the bag has a rounded perimeter, the edges still catch on (and potentially would wear over time) the water bottle pockets and nearby seams of my backpacks. I have never had this issue with a water bottle, as it's always just smoothly slid straight in. I also took a photo of both types of water bottles in the side pockets of one of my backpacks (canvas/non-stretchy pockets), but can't tell which one encroaches more on the interior space. The bag may actually be superior here, given that it has a more flattened as opposed to circular top-down profile, and so doesn't waste space in a bottle pocket like a typical water bottle does.[Durability]Of the two bags I bought, each inflated with slightly different creases/pinch points on the bottom fold (where other reviewers said it eventually leaked from). It does seem to catch a bit on each bags unique pinch points when filling/emptying, and doesn't inspire confidence in terms of longevity. There's a bit of that on the top and sides as well, but I'm less concerned about it there. Again, something I have never worried about with a typical water bottle. I think they need to rework the design to avoid these sharp catch points, and ensure things expand/compress smoothly.[Conclusion]Quite expensive (at current price of $13) for what it is, given space-efficiency and packability issues (and especially durability issues). I feel just reusing a typical plastic water bottle may be preferable and less of a hassle. If they could rework the design and how the bag inflates/deflates (avoiding pinches, and providing a more rounded form when fully inflated), it could go from questionable/annoying to being a clear winner.I may update this review after traveling with 2 of them for 3 months.