Review - 6 L Platypus Water Tanks
I had high hopes for these water bottles (tanks). But they were flawed in a major way. The top of the tank has a zip lock closed opening. The opening has a very annoying habit of popping open and dumping all the water out. If you grab the bag by anything but the top it comes open. And I am not confident that the weight of the water inside it would not pop it open if it bounced around lying on its side. So they are going back to REI and I am going to try some of the smaller Platypus Water Tanks.