I purchased one of these to swap from a pack bladder for winter walks / hikes. I liked the idea, the price was right and I saw it in a gear review. When I recieved it, somone at the factory put the cap on wrong causing a crease in the cap joint causing a leak. I fixed this and was happy with it until after only 2 or 3 times out the product failed in the bottom crease.I would look at something with better "softer" materials for the bag and better plastic for the cap.

I like bringing a couple of empty Platy soft bottles in my carry-on bag through airport security checkpoints, and then filling them at a drinking fountain afterwards. This works absolutely great with a brand new bottle. However, after a few airline trips, the plastic is noticeably stiffer and less flexible, and creases start forming in the center of the folded bottom panel. The inner surfaces also seem to become less hydrophobic, with water beading up more and the bottle taking longer and longer to fully dry out. I noticed this pattern from a habit of carrying 2 soft bottles of different ages whenever I travel for the past few years, repeatedly replacing the oldest bottle before the creases leak, and then watching as the next oldest bottle gets more and more stiff ... MoreI like bringing a couple of empty Platy soft bottles in my carry-on bag through airport security checkpoints, and then filling them at a drinking fountain afterwards. This works absolutely great with a brand new bottle. However, after a few airline trips, the plastic is noticeably stiffer and less flexible, and creases start forming in the center of the folded bottom panel. The inner surfaces also seem to become less hydrophobic, with water beading up more and the bottle taking longer and longer to fully dry out. I noticed this pattern from a habit of carrying 2 soft bottles of different ages whenever I travel for the past few years, repeatedly replacing the oldest bottle before the creases leak, and then watching as the next oldest bottle gets more and more stiff and creased until it needs to be replaced as well. On average, I'd say I'm flying with my soft bottles about 2-4 times a year, with light to moderate weekend use during the rest of the year. Under these conditions, a single soft bottle lasts about 12-18 months before it looks like it could easily spring a leak from one of the creases on the bottom panel.

The SoftBottle has the lowest weight of materials to water capacity ratio of any bottle or reservoir that I can find. Despite being so lightweight, it is still very tough. At first I was timid when using it, thinking it was fragile. But after several months of usage, I’ve not had any issues and I’ve stopped coddling it.My only wish for this bottle would be a wider mouth. It is sometimes hard to get the contents of some of the larger drink packets in to it. However, that would probably up the weight. I would choose the lower weight over a wider mouth any day as it is still possible to use a makeshift funnel when I come across those larger drink packets.