My goal in getting two of these was so that I could bring drinking water with me in my bag easily, as my bag doesn't conform well to big cylindrical bottles. It failed on the carrying & the drinking portion of my goal. They leaked easily, so I couldn't really carry them in my bag. Secondly, after numerous washings (manually and dishwasher), it just had an added taste. I'm not sure how to describe it, but it was not subtle. The water just tasted wrong. I rinsed it out repeatedly with no luck. So, the drinkability sucked and they couldn't go in my bag due to leaking. Complete fail.1Using it for gym. Very practical as I don't carry a gym bag. I exercise with whatever close I come out the house with so I carry only a small purse. Fits in my purse on the way to gym and fill it with water when I am there. A bit on the larger size when it gets filled.Very light weight. Rolls up very small when empty. Didn’t leak. Overall exactly what I wanted for daytime excursions in Mexico.The bottle holds so little that it's basically negligible. Because of the limp shape, it's difficult to get the last few drops out. The bottle also doesn't fold down very well; the rigidity of the lid makes it hard to tuck away. I threw this away after my vacation.These are perfect for camping, hiking, backpacking, boating... I have 3 now and will probably buy more.Got one of these which came with a broken clip. Amazon replaced it for me right away. Useful water bottle to have when traveling light.